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US Patent: 154,976
Drawing Protracter, Sliding T-Square, etc.
Patentee:
S. Milton York - Toledo, OH

USPTO Classifications:
33/403, D10/65

Tool Categories:
layout tools : protractors

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
George A Tibbitts
M. Rogers

Patent Dates:
Applied: Jan. 24, 1874
Granted: Sep. 15, 1874

Patent Pictures:
USPTO pdf tiff
Google Patents
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