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US Patent: 182,177
Rotary Measure
Patentees:
Daniel Davis, Jr. - Worcester, MA
Edward Wright - Worcester, MA

USPTO Classifications:
235/103

Tool Categories:
industrial tools : rpm speed gauges and tachometers

Assignees:
William F. Hudson - Worcester, MA

Manufacturer:
R. Woodman Mfg. & Supply Co. - Boston, MA

Witnesses:
Abiel E. Wilson
Phinehas Ball

Patent Dates:
Applied: Apr. 07, 1876
Granted: Sep. 12, 1876

Patent Pictures: [ 1 | 2 | 3 ]
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"Vintage Machinery" entry for J. W. Mixter Saw Tool Co.
Description:
This indicator was marked "Woodman's Patent * Sept. 12 1876*

It was sold by the J. W. Mixter Saw Tool Co. in their 1889-1890 Catalogue.

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