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US Patent: 114,986
Improvement in Adjustable Squares
Patentee:
Knud Steen - Rochester, NY

USPTO Classifications:
33/473

Tool Categories:
layout tools : squares
rules : folding rules
layout tools : bevels

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Wm. M. Bates
N. R. Robinson

Patent Dates:
Granted: May 16, 1871

Patent Pictures:
USPTO pdf tiff
Google Patents
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Description:
Combined folding rule, square, and T-square utilizing a slotted rule and thumbscrew.

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