Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 511,736
Attachment for boring-mills
Taper attachment and feed mechanism for vertical boring mill
Patentee:
Charles Leon Libby - Bridgeport, CT

USPTO Classifications:
408/237, 409/190, 82/11

Tool Categories:
metalworking machines : drilling and boring : vertical boring mills

Assignees:
Edward P. Bullard - Bridgeport, CT

Manufacturer:
Bridgeport Machine Tool Works - Bridgeport, CT
Bullard Machine Tool Co. - Bridgeport, CT

Witnesses:
M. C. Hinchcliffe
A. J. Tanner

Patent Dates:
Applied: Dec. 05, 1892
Granted: Dec. 26, 1893

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions
"Vintage Machinery" entry for Bridgeport Machine Tool Works
"Vintage Machinery" entry for Bullard Machine Tool Co.

Copyright © 2002-2020 - DATAMP