Ratchet Wrench Company

Ratchet Wrench Company (York Springs, PA) - building factory 10/1887, Chartered 5/7/1888.  The 5/10/1889 edition of the New Oxford Item reports that the factory "commenced making wrenches on Monday" (5/6/1889). 

John W. Day Patent #343,628 - Ratchet Wrench - Assigned to David M. Stewart - York Springs, PA.