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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:
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Report data errors or omissions to steward Jeff Joslin
Description:
Improvements to patent 166,963.

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