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Patent number:
Patent Date:
US Patent: 188,773
Improvement in machines for drilling the shanks of rivets
Patentee:
Mellen Bray (
exact
or
similar
names) - Newton, MA
USPTO Classifications:
408/139
,
408/61
,
408/71
Tool Categories:
specialty machines
:
rivet making machines
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
E. A. Hemmenway
N. C. Lombard
Patent Dates:
Applied:
Oct. 02, 1876
Granted:
Mar. 27, 1877
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Description:
Improvements to patent
166,963
.
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