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US Patent: 385,791
Combined Bit, Countersink, and Screw-Driver
Patentee:
Frederick B. Carpenter - Manistique, MI

USPTO Classifications:
408/193, 408/199, 7/158, 7/165, 7/168, 81/440, 81/57.5

Tool Categories:
combination tools
woodworking tools : hand drills : drill bits : countersinks

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
I. S. Shippeny
Ed. L. Clapp

Patent Dates:
Applied: Mar. 21, 1888
Granted: Jul. 10, 1888

Patent Pictures: [ 1 | 2 ]
USPTO pdf tiff
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