Melvin Crooks

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Champaign, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Building construction
- Patent number 4,271,645
- Issue date Jun 9, 1981
- Melvin L. Crooks
- E04 - BUILDING
Information Patent Grant
Building construction of A-shaped elements
- Patent number 4,182,086
- Issue date Jan 8, 1980
- Melvin Crooks
- E04 - BUILDING