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DE Patent: DE-656,423
An Apparatus for Finishing of Pre-Cut Spur Gears with Straight or Helically Extending Teeth by Rolling on a Tool, which is Designed as a Rack or as a Spur Gear
Patentee:
Michigan Tool Co. - Detroit, Wayne County, MI

USPTO Classifications:

Tool Categories:
metalworking machines : gear making machines

Assignees:
Michigan Tool Co. - Detroit, Wayne County, MI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 31, 1931
Granted: Feb. 08, 1938

Patent Pictures:
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"Vintage Machinery" entry for Michigan Tool Co.

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