https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=41209&pn=D177,636 Wrench Patentees: Walter R. Meier - Hamburg NY , Hollis R. Ross - Buffalo NY Granted:1956-05-08

Design marketed as the TAPER DESIGN, with handles angled to clear surfaces and lessen chances for scraped knuckles. Also used for CRESCENT "LIFETIME" box end wrenches after CRESCENT's acquisition of BARCALO in 1963.
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