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US Patent: 686,497
Telescopic Micrometer Gage
Patentee:
Theodore Wiedmann - Philadelphia, PA

USPTO Classifications:
33/826

Tool Categories:
metalworking tools : machinist tools : measuring tools : inside micrometers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
P. F. Nagel
L. Dowrille
John A. Wiedersheim
E. Hayward Fairbanks

Patent Dates:
Applied: Dec. 15, 1900
Granted: Nov. 12, 1901

Patent Pictures:
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