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Robert F. Seitz
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Hazelcrest, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Auxiliary crank end
Patent number
4,319,429
Issue date
Mar 16, 1982
The Youngstown Steel Door Company
Robert F. Seitz
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Power wheel for folding doors
Patent number
4,260,046
Issue date
Apr 7, 1981
The Youngstown Steel Door Company
Robert F. Seitz
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Power wheel for folding doors
Patent number
4,210,231
Issue date
Jul 1, 1980
The Youngstown Steel Door Company
Robert F. Seitz
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Door assemblies for closing rail car end opening
Patent number
4,164,189
Issue date
Aug 14, 1979
The Youngstown Steel Door Company
William E. Fritz
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Door assemblies for closing rail car end openings
Patent number
3,938,446
Issue date
Feb 17, 1976
The Youngstown Steel Door Co.
Robert F. Seitz
B61 - RAILWAYS