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US Patent: 1,241,143
Bit Brace Extension
Patentee:
Harry E. Parker - New Britain, CT

USPTO Classifications:
279/56

Tool Categories:
woodworking tools : hand drills : drill bit extensions

Assignees:
The Stanley Rule & Level Co. - New Britain, CT

Manufacturer:
The Stanley Rule & Level Co. - New Britain, CT

Witnesses:
Unknown

Patent Dates:
Applied: Jan. 17, 1917
Granted: Sep. 25, 1917

Patent Pictures:
USPTO pdf tiff
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Description:
Reduced cost construction and interchangeable jaws are cited as objects of the patent.

Known example also marked by Winchester.

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