Michael O'Hara Hirtle

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Torrance, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Vocalizing apparatus
- Patent number 4,318,245
- Issue date Mar 9, 1982
- The Quaker Oats Company
- Roger H. Stowell
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Toy projectile launching device
- Patent number 4,223,472
- Issue date Sep 23, 1980
- Mattel, Inc.
- Ferenc Fekete
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Toy spring-type projectile launcher having directional controlling...
- Patent number 4,155,194
- Issue date May 22, 1979
- Mattel, Inc.
- Kenneth I. Amamoto
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Toy airplane launcher
- Patent number 4,060,930
- Issue date Dec 6, 1977
- Mattel, Inc.
- Michael O'Hara Hirtle
- A63 - SPORTS GAMES AMUSEMENTS