Membership
Tour
Register
Log in
James J. Riggs
Follow
Person
Bryan, OH, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Bit retention and release mechanism
Patent number
4,858,939
Issue date
Aug 22, 1989
The ARO Corporation
James J. Riggs
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR