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US Patent: 1,088,544
Combined Folding Rule and Square
Patentee:
Lee D. Craig (exact or similar names) - San Francisco, CA

USPTO Classifications:
33/458

Tool Categories:
rules : folding rules
layout tools : squares

Assignees:
Square Rule Co. - Ukn, CA

Manufacturer:
Not known to have been produced

Witnesses:
Harry A. Totten
D. B. Richards

Patent Dates:
Applied: Mar. 24, 1913
Granted: Feb. 24, 1914

Patent Pictures:
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