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US Patent: 226,162
Compensating Errors in Screw Dividing Engines
Patentee:
Samuel Darling - Providence, RI

USPTO Classifications:
33/19.1, 74/89.23, 82/110

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John E. Hall
J. L. Ingraham

Patent Dates:
Applied: Nov. 11, 1879
Granted: Apr. 06, 1880

Patent Pictures:
USPTO pdf tiff
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