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American Patents |
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Description Adjustable Crank Centrifugal Separator Centrifuge Bearing Centrifugal Separator Pipe Tongs (Wrench) Adjustable Lamp Cam Wheel Transmission Adjustable Lamp Adjustable Lamp Adjustable Lamp Lock |
Year 1895 1910 1913 1914 1914 1918 1919 1920 1930 1930 1932 |
Patent Number 547853 963577 1064912 1115825 1112619 1254697 1312328 1348949 1761832 1772284 1840037 |