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US Patent: 3,067,768
Temperature compensated hydraulic control device
Patentee:
Joseph Ludwig Burg - Los Angeles, CA

USPTO Classifications:
137/468, 137/613, 137/625.31, 251/121, 251/205

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

Assignees:
Burgmaster Corp. - Los Angeles, CA

Manufacturer:
Burgmaster Corp. - Los Angeles, CA

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 17, 1959
Granted: Dec. 11, 1962

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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