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US Patent: 596,420
Expansion Router-Bit
Patentee:
Franklin W. Britton (exact or similar names) - Brainerd, MN

USPTO Classifications:
408/190

Tool Categories:
woodworking tools : hand drills : drill bits : adjustable drill bits

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
I. U. White
S. J. Greer

Patent Dates:
Applied: Apr. 19, 1897
Granted: Dec. 28, 1897

Patent Pictures:
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