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US Patent: 430,299
Centering-Tool
Center Boring and Marking Tool
Patentee:
Julian R. Rand - Brattleborough, VT

USPTO Classifications:
30/366, 30/368

Tool Categories:
woodworking tools : hand drills : drill bits : twist drill bits
punches : pin punches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
E. D. Whitney
O. A. Marshall

Patent Dates:
Applied: Mar. 13, 1890
Granted: Jun. 17, 1890

Patent Pictures:
USPTO pdf tiff
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