https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=85493&pn=667,743 Wrench Patentee: Thomas E. Smythe - Galion OH Granted:1901-02-12

Pipe wrench with a spring-tensioned hook jaw and sliding adjustable jaw. A known example is marked only with "Pat'd" & "1901"
This is one of 84,785 patents currently in the database at datamp.org

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