Petro Vlahos

Follow

Person

Tarzana, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method of making a high-gain projection screen
- Patent number 4,338,165
- Issue date Jul 6, 1982
- National Association of Theatre Owners, Inc.
- Petro Vlahos
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
High-gain projection screen
- Patent number 4,235,513
- Issue date Nov 25, 1980
- National Association of Theatre Owners, Inc.
- Petro Vlahos
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus for reproducing a multiple track photographic sound record
- Patent number 4,044,207
- Issue date Aug 23, 1977
- The Association of Motion Picture and Television Producers, Inc.
- Petro Vlahos
- G11 - INFORMATION STORAGE
Information Patent Grant
Sound recording on color film by hue modulation
- Patent number 3,969,593
- Issue date Jul 13, 1976
- The Association of Motion Picture and Television Producers Inc.
- Petro Vlahos
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY