https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=85851&pn=3,850,057 COMBINATION TORQUEING AND RATCHETING WRENCH Patentee: James Preston Evans - Oklahoma City OK Granted:1974-11-26

"Open end" jaw shapes that depending on rotation and positioning in relation to the hexagonal work piece can operate as ratchet, or firmly grip. The patent number appears on packaging for EVANS T&R wrenches and examples of the wrenches. Mentions of related prior art include patent nos. 3,762,244, 574,622, 2,669,147, 3,242,775, and 3,252,359.
This is one of 85,142 patents currently in the database at datamp.org

]]>