U+2104 CENTRE LINE SYMBOL
U+2104 was added to Unicode in version 1.1 (1993). It belongs to the block 
This character is a Other Symbol and is commonly used, that is, in no specific script. The character is also known as clone.
The glyph is not a composition. It has a Neutral East Asian Width. In bidirectional context it acts as Other Neutral and is not mirrored. In text U+2104 behaves as Alphabetic regarding line breaks. It has type Other for sentence and Other for word breaks. The Grapheme Cluster Break is Any.
The Wikipedia has the following information about this codepoint:
Engineering drawing abbreviations and symbols are used to communicate and detail the characteristics of an engineering drawing. This list includes abbreviations common to the vocabulary of people who work with engineering drawings in the manufacture and inspection of parts and assemblies.
Technical standards exist to provide glossaries of abbreviations, acronyms, and symbols that may be found on engineering drawings. Many corporations have such standards, which define some terms and symbols specific to them; on the national and international level, ASME standard Y14.38 is probably the most widely used.
Jump to: 0-9 • A • B • C • D • E • F • G • H • I • J • K • L • M • N • O • P • Q • R • S • T • U • V • W • X • Y • Z • see also
Jump to: 0-9 • A • B • C • D • E • F • G • H • I • J • K • L • M • N • O • P • Q • R • S • T • U • V • W • X • Y • Z • see also
Representations
| System | Representation |
|---|---|
| Nº | 8452 |
| UTF-8 | E2 84 84 |
| UTF-16 | 21 04 |
| UTF-32 | 00 00 21 04 |
| URL-Quoted | %E2%84%84 |
| HTML-Escape | ℄ |
| Wrong windows-1252 Mojibake | â |
| alias | clone |
Elsewhere
Complete Record
| Property | Value |
|---|---|
| Age (age) | 1.1 |
| Unicode Name (na) | CENTRE LINE SYMBOL |
| Unicode 1 Name (na1) | C L SYMBOL |
| Block (blk) | Letterlike_Symbols |
| General Category (gc) | Other Symbol |
| Script (sc) | Common |
| Bidirectional Category (bc) | Other Neutral |
| Combining Class (ccc) | Not Reordered |
| Decomposition Type (dt) | None |
| Decomposition Mapping (dm) |
 |
| Lowercase (Lower) | ✘ |
| Simple Lowercase Mapping (slc) |
|
| Lowercase Mapping (lc) |
|
| Uppercase (Upper) | ✘ |
| Simple Uppercase Mapping (suc) |
|
| Uppercase Mapping (uc) |
|
| Simple Titlecase Mapping (stc) |
|
| Titlecase Mapping (tc) |
|
| Case Folding (cf) |
|
| ASCII Hex Digit (AHex) | ✘ |
| Alphabetic (Alpha) | ✘ |
| Bidi Control (Bidi_C) | ✘ |
| Bidi Mirrored (Bidi_M) | ✘ |
| Bidi Paired Bracket (bpb) |
|
| Bidi Paired Bracket Type (bpt) | None |
| Cased (Cased) | ✘ |
| Composition Exclusion (CE) | ✘ |
| Case Ignorable (CI) | ✘ |
| Full Composition Exclusion (Comp_Ex) | ✘ |
| Changes When Casefolded (CWCF) | ✘ |
| Changes When Casemapped (CWCM) | ✘ |
| Changes When NFKC Casefolded (CWKCF) | ✘ |
| Changes When Lowercased (CWL) | ✘ |
| Changes When Titlecased (CWT) | ✘ |
| Changes When Uppercased (CWU) | ✘ |
| Dash (Dash) | ✘ |
| Deprecated (Dep) | ✘ |
| Default Ignorable Code Point (DI) | ✘ |
| Diacritic (Dia) | ✘ |
| East Asian Width (ea) | Neutral |
| Extender (Ext) | ✘ |
| FC NFKC Closure (FC_NFKC) |
|
| Grapheme Cluster Break (GCB) | Any |
| Grapheme Base (Gr_Base) | ✔ |
| Grapheme Extend (Gr_Ext) | ✘ |
| Grapheme Link (Gr_Link) | ✘ |
| Hex Digit (Hex) | ✘ |
| Hangul Syllable Type (hst) | Not Applicable |
| Hyphen (Hyphen) | ✘ |
| ID Continue (IDC) | ✘ |
| Ideographic (Ideo) | ✘ |
| ID Start (IDS) | ✘ |
| IDS Binary Operator (IDSB) | ✘ |
| IDS Trinary Operator and (IDST) | ✘ |
| InMC (InMC) | — |
| Indic Positional Category (InPC) | NA |
| Indic Syllabic Category (InSC) | Other |
| ISO 10646 Comment (isc) | — |
| Joining Group (jg) | No_Joining_Group |
| Join Control (Join_C) | ✘ |
| Jamo Short Name (JSN) | — |
| Joining Type (jt) | Non Joining |
| Line Break (lb) | Alphabetic |
| Logical Order Exception (LOE) | ✘ |
| Math (Math) | ✘ |
| Noncharacter Code Point (NChar) | ✘ |
| NFC Quick Check (NFC_QC) | Yes |
| NFD Quick Check (NFD_QC) | Yes |
| NFKC Casefold (NFKC_CF) |
|
| NFKC Quick Check (NFKC_QC) | Yes |
| NFKD Quick Check (NFKD_QC) | Yes |
| Numeric Type (nt) | None |
| Numeric Value (nv) | NaN |
| Other Alphabetic (OAlpha) | ✘ |
| Other Default Ignorable Code Point (ODI) | ✘ |
| Other Grapheme Extend (OGr_Ext) | ✘ |
| Other ID Continue (OIDC) | ✘ |
| Other ID Start (OIDS) | ✘ |
| Other Lowercase (OLower) | ✘ |
| Other Math (OMath) | ✘ |
| Other Uppercase (OUpper) | ✘ |
| Pattern Syntax (Pat_Syn) | ✘ |
| Pattern White Space (Pat_WS) | ✘ |
| Quotation Mark (QMark) | ✘ |
| Radical (Radical) | ✘ |
| Sentence Break (SB) | Other |
| Simple Case Folding (scf) |
|
| Script Extension (scx) | Common |
| Soft Dotted (SD) | ✘ |
| STerm (STerm) | ✘ |
| Terminal Punctuation (Term) | ✘ |
| Unified Ideograph (UIdeo) | ✘ |
| Variation Selector (VS) | ✘ |
| Word Break (WB) | Other |
| White Space (WSpace) | ✘ |
| XID Continue (XIDC) | ✘ |
| XID Start (XIDS) | ✘ |
| Expands On NFC (XO_NFC) | ✘ |
| Expands On NFD (XO_NFD) | ✘ |
| Expands On NFKC (XO_NFKC) | ✘ |
| Expands On NFKD (XO_NFKD) | ✘ |