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The copyright symbol, or copyright sign, designated by (a circled capital letter "C"), is the symbol used in copyright notices for works other than sound recordings.
Astronomical symbols – Symbols in astronomy; Chemical symbol – Abbreviations used in chemistry; Chinese punctuation – Punctuation used with Chinese characters; Currency symbol – Symbol used to represent a monetary currency's name; Diacritic – Modifier mark added to a letter (accent marks etc.)
As of Unicode version 16.0, there are 155,063 characters with code points, covering 168 modern and historical scripts, as well as multiple symbol sets.This article includes the 1,062 characters in the Multilingual European Character Set 2 subset, and some additional related characters.
Because the ® symbol is not commonly available on typewriters (or ASCII), it was common to approximate it with the characters (R) (or (r)). [ a ] [ b ] An example of a legal equivalent is the phrase Registered, U.S. Patent and Trademark Office , which may be abbreviated to Reg U.S. Pat & TM Off.
Miscellaneous Symbols is a Unicode block (U+2600–U+26FF) containing glyphs representing concepts from a variety of categories: astrological, astronomical, chess, dice, musical notation, political symbols, recycling, religious symbols, trigrams, warning signs, and weather, among others.
ASCII was incorporated into the Unicode (1991) character set as the first 128 symbols, so the 7-bit ASCII characters have the same numeric codes in both sets. This allows UTF-8 to be backward compatible with 7-bit ASCII, as a UTF-8 file containing only ASCII characters is identical to an ASCII file containing the same sequence of characters.
The copyleft symbol is a mirrored version of the copyright symbol, ©: a reversed C in a circle. [60] A 2016 proposal to add the symbol to a future version of Unicode was accepted by the Unicode Technical Committee. [61] [62] The code point U+1F12F COPYLEFT SYMBOL was added in Unicode 11. [62] [63] The copyleft symbol has no legal status. [64]
The service mark symbol ℠ (the letters SM in small capitals and superscript style), is a symbol used in the United States and some other jurisdictions to provide notice that the preceding mark is a service mark. This symbol may be used for service marks not yet registered with the relevant national authority.