Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first  previous  back  next  last
US Patent: 291,137
Device for Drilling Square Holes
Patentee:
Ernst Herrmann Bieber (exact or similar names) - New York, NY

USPTO Classifications:
82/1.3

Tool Categories:
metalworking machines : drilling and boring : drill bits

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 17, 1883
Granted: Jan. 01, 1884

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens

Copyright © 2002-2024 - DATAMP