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US Patent: 146,531
Depth-Gages for Surfaces
Patentee:
Thomas Palmer Hiorns - East Boston, Suffolk County, MA

USPTO Classifications:
33/836

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Elisha Bassett
C. F. Loftus
E. M. Gallagher
R. D. O. Smith

Patent Dates:
Applied: Jun. 25, 1873
Granted: Jan. 20, 1874

Patent Pictures:
USPTO pdf tiff
Google Patents
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Description:
J. S. Brown - patent attorney

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