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US Patent: 129,737
Improvement in Carpenters' Bevels
Patentee:
William H. Laughlin (exact or similar names) - Quincy, IL

USPTO Classifications:
33/473

Tool Categories:
layout tools : bevels

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Frederic E. Wescott
Gustavus Meyer
Patent Dates:
Granted: Jul. 23, 1872

Patent Pictures:
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Report data errors or omissions to steward Russ Allen.
Description:
Complex adjustment mechanism utilizing a double ratchet-pawl, disk, and screw rod that locks the blade in position.

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