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US Patent: 1,973,942
Socket Collet Structure
Patentee:
Joseph F. Buhr - Ann Arbor, Washtenaw County, MI

USPTO Classifications:
279/49

Tool Categories:
metalworking machines : drilling and boring : drill presses : drill press accessories

Assignees:
Buhr Machine Tool Co. - Ann Arbor, Washtenaw County, MI

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 28, 1932
Granted: Sep. 18, 1934

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Buhr Machine Tool Co

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