LaGripper Wrench Company (Battle Creek, MI) - incorporated 9/21/1900 by: Carl F. Beach - Chairman, Arthur B. Williams - Sec, Erasmus D. Beach - Treas, Julia E. Clark - Manager, D. Lyman Reade - Manager. The factory and equipment were sold at auction in February of 1906. Here is a nice living biography of Carl Beach. This biography (from 1904) notes he invented his wrench (and patented it) in 1899, and began manufacturing it in 1902.
Carl F. Beach Patent #758,499 - Wrench