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US Patent: 459,361
Separable Square
Patentee:
Daniel L. Gregory (exact or similar names) - Chicago, IL

USPTO Classifications:
403/323

Tool Categories:
layout tools : squares : carpenter squares

Assignees:
Daniel L. Gregory - Chicago, IL
John E. Frizen - Chicago, IL

Manufacturer:
Not known to have been produced

Witnesses:
S. L. Williams
Frank W. Rollins

Patent Dates:
Applied: Feb. 26, 1891
Granted: Sep. 08, 1891

Patent Pictures:
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Report data errors or omissions to steward Russ Allen.
Description:
Dovetailed joint with specialized locking screw.

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