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US Patent: 72,036
Improvement in Hatch Lining Drawings
Patentee:
E. K. Haynes (exact or similar names) - Hanover, NH

USPTO Classifications:
33/473

Tool Categories:
layout tools : bevels

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. B. Crosby
Francis Gould
Patent Dates:
Granted: Dec. 10, 1867

Patent Pictures:
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Report data errors or omissions to steward Russ Allen.
Description:
Straight edge with bevel arm and mechanism to advance the straight edge.

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