Membership
Tour
Register
Log in
Paul L. Hittinger
Follow
Person
Dayton, OH, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Interchangeable auxiliary keyboard
Patent number
4,158,130
Issue date
Jun 12, 1979
NCR Corporation
Floyd G. Speraw
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS