Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 378,251
Die for Making Auger-Bits
Patentee:
Charles H. Irwin - Wilmington, OH

USPTO Classifications:
72/352, 72/469, 72/478

Tool Categories:
tool making : making drills and augers

Assignees:
Irwin Auger Bit Company - Wilmington, OH

Manufacturer:
Not known to have been produced

Witnesses:
Jno. W. Strehli
Philip Roettinger, Jr.

Patent Dates:
Applied: Oct. 15, 1887
Granted: Feb. 21, 1888

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions

Copyright © 2002-2019 - DATAMP