Membership
Tour
Register
Log in
Raymond E. Callahan Jr.
Follow
Person
Torrance, CA, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
System for photographically recording digital data and analog sound...
Patent number
5,639,585
Issue date
Jun 17, 1997
Sony Corporation
Raymond E. Callahan
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY