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US Patent: 2,912,011
Valve structure
Patentee:
Fred G. Burg - Los Angeles, CA

USPTO Classifications:
137/599.05, 137/599.08, 137/601.16, 137/613, 137/625.3, 137/625.31, 137/625.46

Tool Categories:
woodworking machines : wood drilling and boring : drill presses

Assignees:
None

Manufacturer:
Burgmaster Corp. - Los Angeles, CA

Witnesses:
Unknown

Patent Dates:
Applied: May 11, 1953
Granted: Nov. 10, 1959

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Burgmaster Corp.
Description:
Primarily intended for production metalworking, these machines are also useful in a woodworking shop.

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