Frank Gray

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St. Louis, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Toy vehicle with track and roller drive train
- Patent number 5,207,442
- Issue date May 4, 1993
- Champion Toy Company
- Frank Gray
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Three-wheeled scooter with reciprocating treadle drive
- Patent number 5,110,148
- Issue date May 5, 1992
- Champion Toy Company
- LeRoy Stienbarger
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Pedal operated vehicle with cam and cam follower drive assembly
- Patent number 4,880,249
- Issue date Nov 14, 1989
- Frank Gray
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
Information Patent Grant
Method of making clear dies from bar stock
- Patent number 4,637,282
- Issue date Jan 20, 1987
- Frank Gray
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...