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Manufacturers Index - George Bignell Power Hammer and General Mfg. Co.

George Bignell Power Hammer and General Mfg. Co.
Denver, CO, U.S.A.
Manufacturer Class: Metal Working Machinery

This page contains information on patents issued to this manufacturer.

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USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number Date Title Name City Description
790,553 May. 23, 1905 Power Hammer George Bignell Denver, Denver County, CO
837,519 Dec. 04, 1906 Power Hammer George H. Tolley Denver, Denver County, CO
    Power Hammer William G. Simcock Denver, Denver County, CO