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Patent number:
Patent Date:
US Patent: 152,487
Device for Centering Cylinders
Patentee:
George F. Hawley (
exact
or
similar
names) - Grand Rapids, MI
USPTO Classifications:
33/520
Tool Categories:
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Charles A. Renwick
Edward Tagart
Patent Dates:
Applied:
Dec. 19, 1873
Granted:
Jun. 30, 1874
Patent Pictures:
USPTO
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Google Patents
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