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Manufacturers Index - Rockford Machine Tool Co.
Patents
This page contains information on patents issued to this manufacturer.

Submitting Patent Information

If you find a patent number or patent date by this manufacturer that is not on this list, please contact the Site Historian.


Key to Links for Patent Information

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
2,167,890 Aug. 01, 1939 Hydraulic Machine Tool Paul S. Jackson Rockford, Winnebago County, IL
2,924,239 Feb. 09, 1960 Servo Valve Having Helically Arranged Metering Parts Stanley A. Bjorklund Loves Park, Winnebago County, IL
2,931,684 Apr. 05, 1960 Machine Tool Ways Earle W. Johnson Rockford, Winnebago County, IL
2,967,444 Jan. 10, 1961 Thread Rolling Machines Elmer E. Hallberg Rockford, Winnebago County, IL
    Thread Rolling Machines Ralph S. Litterst Rockford, Winnebago County, IL  
3,152,514 Oct. 13, 1964 Tool Lifter for Planer or the Like Phillip E. Olson Rockford, Winnebago County, IL