Membership
Tour
Register
Log in
Tomomasa Tanaka
Follow
Person
Tokyo, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Card sorting machine
Patent number
4,576,288
Issue date
Mar 18, 1986
Tanaka Seiko Co. Ltd.
Tomomasa Tanaka
G06 - COMPUTING CALCULATING COUNTING