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US Patent: 2,890,072
Retainer for rotary power tools
Patentees:
Paul E. Vega - Glen Ellyn, IL
Frank A. Kaman - Aurora, IL

USPTO Classifications:
279/79, 403/365, 403/372, 403/377, 411/508, 411/913, 81/177.85

Tool Categories:

Assignees:
Thor Power Tool Co. - Aurora, IL

Manufacturer:
Thor Power Tool Co. - Aurora, IL

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 10, 1956
Granted: Jun. 09, 1959

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Thor Power Tool Co.

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