Membership
Tour
Register
Log in
William Joseph Gross
Follow
Person
Rancho Palos Verdes, CA, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Toy simulating a calculator
Patent number
4,075,771
Issue date
Feb 28, 1978
Mattel, Inc.
Edmund Emil Landsinger
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS