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US Patent: 986,695
Mainspring Winder
Patentee:
Frank R. Cunningham - Medford, Middlesex County, MA

USPTO Classifications:
185/39, 81/7.5

Tool Categories:
trade specific : watchmaker

Assignees:
Kendrick & Davis - Lebanon, Grafton County, NH

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 16, 1909
Granted: Mar. 14, 1911

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Kendrick & Davis

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