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US Patent: 720,947
Micrometer Calipers
Patentee:
Rudolf Miller - Chambersburg, PA

USPTO Classifications:
33/501.5

Tool Categories:
metalworking tools : machinist tools : measuring tools : indicating calipers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
G. W. Cheney
Walton Harrison
William R. Keefer
Charles G. Weirich

Patent Dates:
Applied: Aug. 14, 1902
Granted: Feb. 17, 1903

Patent Pictures:
USPTO pdf tiff
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