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200 10$aIEEE Std 91-1973 (ANSI Y32.14-1973) $eIEEE Graphic Symbols for Logic Diagrams (Two State Devices) /$fIEEE
210  1$a[Place of publication not identified] :$cIEEE,$d1973.
215   $a1 online resource
330   $aThis standard establishes the graphic symbols for use in the preparation of logic diagrams representing logic functions implemented with two-state devices. The primary purpose of this standard is to enable a user to readily read and understand the function of the logic without requiring a specific knowledge of the constructional details of the device represented. This standard sets forth principles governing the formation of graphic symbols for logic diagrams in which the connections between symbols are generally shown with lines. Descriptions of logic functions, the graphic representation of these functions, and examples of their applications are given.
517   $a91-1973 - IEEE Graphic Symbols for Logic Diagrams 
517   $aIEEE Std 91-1973 
606   $aLogic diagrams
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615  0$aGraphics.
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