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US Patent: 223,709
Framing Squares
Patentee:
Mahlon B. Cornell - Philadelphia, PA

USPTO Classifications:
33/481

Tool Categories:
layout tools : squares : carpenter squares

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
William H. Shallcross
C. H. Cornell
Achilles Schehl
C. Sedgwick

Patent Dates:
Applied: Oct. 17, 1879
Granted: Jan. 20, 1880

Patent Pictures:
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Description:
My invention consists in a combined rule, square, and gage for carpenters' use in framing, the object of the invention being to furnish an implement adapted for carrying out all the purposes for which the ordinary square is used with greater facility, convenience, and accuracy.

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