US1864320A
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External grinder
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US1882447A
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Multiple grinder
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US1934278A
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Water cooled oiling system for ball bearings
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US1866724A
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Steering knuckle bearing
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US1799763A
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Control for internal grinders
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US1820029A
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External center grinder
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US1926214A
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Safety device for multiple grinders
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US1865642A
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Multiple groove grinder
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US1905651A
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Safety device for grinders
|
US1871468A
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Internal grinder control
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US1892364A
|
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External grinder
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US1881244A
|
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Multiple grinder
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US1771097A
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Automatic gauge
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US1890162A
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Ironing machine for coils
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US1752542A
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Drive for high-speed spindles
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US1775408A
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High-speed bearing
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US1896752A
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Reversing mechanism for machine tools
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US1973099A
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Oil circulating pump for bearings
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US1997978A
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Two slide automatic grinding machine
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US1892363A
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Multiple external grinder
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