Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 449,135
Drill Chuck
Patentee:
Charles T. Pratt - New Hartford, Oneida County, NY

USPTO Classifications:
279/68

Tool Categories:
metalworking machines : drilling and boring : drill presses : drill press chucks

Assignees:
None

Manufacturer:
Pratt Chuck Co. - Frankfort, Herkimer County, NY

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 31, 1890
Granted: Mar. 31, 1891

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions
"Vintage Machinery" entry for Pratt Chuck Co.

Copyright © 2002-2017 - DATAMP