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

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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
2,372,812 Apr. 03, 1945 Vacuum polishing lathe Harold E. Crozier Hawthorne, CA
2,407,478 Sep. 10, 1946 Antiknock or detonation dampening device Albert G. H. Vanderpoel Hawthorne, CA This invention avoids engine knock by providing "automatic means for introducing steam vapor to the carburetor..."
    Antiknock or detonation dampening device Harold E. Crozier Hawthorne, CA  
2,420,067 May. 06, 1947 Collet attachment for lathes or other metalworking machines Harold E. Crozier Hawthorne, CA
2,429,049 Oct. 14, 1947 Single-phase induction motor control Harold E. Crozier Hawthorne, CA Controller for smaller split-phase motors.
2,458,256 Jan. 04, 1949 Water carburetor Albert G. H. Vanderpoel Los Angeles, CA
    Water carburetor Harold E. Crozier Los Angeles, CA  
2,755,540 Jul. 24, 1956 Bushing and bearing extractor tool Harold E. Crozier Hawthorne, CA
3,003,456 Oct. 10, 1961 Flushing plate for outboard motors Harold E. Crozier Hawthorne, CA
3,471,264 Oct. 07, 1969 Automatic gas detector Harold E. Crozier Hawthorne, CA
2,102,033 Mar. 31, 1972 Boîte aux lettres indicatrice Harold E. Crozier Hawthorne, CA