Robert T. Long

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Cedar Rapids, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Insulated wall construction apparatus
- Patent number 4,393,635
- Issue date Jul 19, 1983
- Robert T. Long
- E04 - BUILDING
Information Patent Grant
Composite insulated wall
- Patent number 4,329,821
- Issue date May 18, 1982
- Robert T. Long
- E04 - BUILDING