Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 1,881,993
Tool attachment device
Ewald A. Arp - Minneapolis, MN

USPTO Classifications:
408/234, 408/79

Tool Categories:
specialty tools : automotive tools
trade specific : automobile mechanic
metalworking tools : boring bars

Van Norman Machine Tool Co. - Springfield, MA

Van Norman Machine Tool Co. - Springfield, MA


Patent Dates:
Applied: Oct. 15, 1930
Granted: Oct. 11, 1932

Reissue Information:
Reissued as RE18,832 (May 16, 1933)

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions
"Vintage Machinery" entry for Van Norman Machine Tool Co.
Patent number seen on a Van Norman "Per-Fect-O" 77/S4 boring bar, along with patents 1,868,440, 1,906,241, and 1,954,034.

This invention...relates to the art of attaching portable cutting or finishing tools... In its preferred application the device will serve as a machine base for attaching cylinder boring or finishing tools to the engine block of multiple cylinder engines."

Copyright © 2002-2019 - DATAMP