Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 46,521
Screw Threading Machine
Improved Milling Machine
Patentee:
Joseph R. Brown (exact or similar names) - Providence, Providence County, RI

USPTO Classifications:
144/134.1, 409/228, 74/813R

Tool Categories:
metalworking machines : milling machines

Assignees:
J. R. Brown & Sharpe - Providence, Providence County, RI

Manufacturer:
J. R. Brown & Sharpe - Providence, Providence County, RI
Brown & Sharpe Mfg. Co. - Providence, Providence County, RI

Witnesses:
Isaac A. Brunell
Samuel Barratt

Patent Dates:
Granted: Feb. 21, 1865

Patent Pictures: [ 1 | 2 | 3 | 4 ]
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Brown & Sharpe Mfg. Co.
American Precision Museum

Copyright © 2002-2024 - DATAMP