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US Patent: 878,507
Opticians Measuring Instrument
Patentee:
Joseph M. Coghlan - Patchogue, Suffolk County, NY

USPTO Classifications:
33/200, 33/342, 33/402

Tool Categories:
trade specific : optician

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Aug. 21, 1907
Granted: Feb. 11, 1908

Patent Pictures:
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