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US Patent: 682,450
Micrometer Indicator
Patentee:
Joseph Boulet - Beverly, MA

USPTO Classifications:
33/709

Tool Categories:
metalworking tools : machinist tools : measuring tools : test indicators

Assignees:
None

Manufacturer:
Boulet's Fine Tool Works - Sebago Lake, Cumberland County, ME

Witnesses:
E. J. Parmenter
Peter A. Couyard
Eugene Humphrey

Patent Dates:
Applied: Jun. 07, 1901
Granted: Sep. 10, 1901

Patent Pictures: [ 1 | 2 | 3 ]
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American Precision Museum
Description:
Eugene Humphrey - patent attorney

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