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US Patent: 386,651
Attachment for Squares
Patentee:
Charles F. Nichols - San Francisco, CA

USPTO Classifications:
33/415, 33/418, 33/DIG16

Tool Categories:
layout tools : squares

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
S. H. Nourse
H. C. Lee
Patent Dates:
Applied: Mar. 27, 1888
Granted: Jul. 24, 1888

Patent Pictures:
USPTO pdf tiff
Google Patents
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