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New logic symbols

New logic symbols
In the late 1960s, the International Electrotechnieal Committee, IEC, set up a working group to devise syrnbols farbinary logic. The work ofthis groupculminated in theearly 1980s in lEC Publication 617: Graphical Symbols forDiagrarns, Part 12:Binary Logic Elements. This standard, published in 1983, went into general circulation in early 1984. It takes into account the useof cornputer-aided drafting equipment and all symbols are designed on a grid.
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