John J. Gryga Jr.

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Milwaukee, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Seat backrest tilt and height adjustment means
- Patent number 4,181,357
- Issue date Jan 1, 1980
- Milsco Manufacturing Company
- Richard F. Swenson
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Vehicle seat having arm rest adjustment means
- Patent number 4,165,901
- Issue date Aug 28, 1979
- Milsco Manufacturing Company
- Richard F. Swenson
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Vehicle seat having backrest height adjustment means
- Patent number 4,154,477
- Issue date May 15, 1979
- Milsco Manufacturing Company
- Richard F. Swenson
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Seat supporting assembly of the resiliently loaded type
- Patent number 4,072,287
- Issue date Feb 7, 1978
- Milsco Manufacturing Company
- Richard F. Swenson
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Seat supporting assembly
- Patent number 4,029,283
- Issue date Jun 14, 1977
- Milsco Manufacturing Company
- Richard F. Swenson
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Seat suspension including improved damping means
- Patent number 3,994,469
- Issue date Nov 30, 1976
- Milsco Manufacturing Company
- Richard F. Swenson
- B60 - VEHICLES IN GENERAL