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US Patent: 2,027,706
Counterbalance valve
Patentees:
Lawrence Lee Schauer - Wyoming, OH
John H. McKewen - Cincinnati, OH

USPTO Classifications:
137/494, 408/235, 91/216R, 91/428, 91/445, 91/447

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

Assignees:
Cincinnati Bickford Tool Co. - Cincinnati, OH

Manufacturer:
Cincinnati Bickford Tool Co. - Cincinnati, OH

Witnesses:
Unknown

Patent Dates:
Applied: Sep. 11, 1934
Granted: Jan. 14, 1936

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Cincinnati Bickford Tool Co.

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