https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=29378&pn=2,020,883 Ratchet Wrench Patentee: Gideon R. Gagne - Kenosha WI Granted:1935-11-12

Used in Snap-On's FR-42 and LR-42 ratchets, and found on an example of Snap-ON L-67 ratchet. Harry C. Alberts - patent attorney
This is one of 84,978 patents currently in the database at datamp.org

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