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US Patent: 169,260
Machines for Making Spring Washers
Patentee:
John William Grover (exact or similar names) - Westminister, Middlesex County, England

USPTO Classifications:
72/169

Tool Categories:
specialty machines : metal washer making machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Sep. 07, 1875
Granted: Oct. 26, 1875

Patent Pictures:
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