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US Patent: 302,079
Caliper Square
Patentee:
Alby C. Winn - Boston, MA

USPTO Classifications:
33/822

Tool Categories:
layout tools : measurement gauges

Assignees:
William E. Payne - Boston, MA
Alby C. Winn - Boston, MA

Manufacturer:
Not known to have been produced

Witnesses:
Jason H. Lange
John F. C. Preinkert

Patent Dates:
Applied: Mar. 28, 1884
Granted: Jul. 15, 1884

Patent Pictures:
USPTO pdf tiff
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