https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=85768&pn=3,024,683 Worm-pressing clamping means for slidable side jaw wrench Patentees: Kenneth F. Finn - Springfield IL , Donald J. Finn - Springfield IL Granted:1962-03-13

Second of two "2nd generation" patents reflecting the internal workings of the FINN TOOL Co. locking adjusting wrench. The basic design received patent nos. 2,657,606 and RE23,832. Patents cited as references; 2,569,581, 2,596,206, 2,657,606, 2,687,662, 2,712,449, 2,729,999, 2,750,829, 2,813,444 and 2,859,650.
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