Drawing Symbols for Draftsmen

Posted by admin April 4, 2015

Patent Drawing Experts

Copyright: USPTO

Graphical symbols for conventional elements may be used on the drawing when appropriate, subject to approval by the Office.

NOTES: In general, in lieu of a symbol, a conventional element, combination or circuit may be shown by an appropriately labeled rectangle, square or circle; abbreviations should not be used unless their meaning is evident and not confusing with the abbreviations used in the suggested symbols.


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