John E. Lair

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Decatur, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Self draining hose connection dual check valve back flow preventer
- Patent number 5,228,470
- Issue date Jul 20, 1993
- A. W. Cash Valve Manufacturing Corporation
- John E. Lair
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Self-draining hose connection vacuum breaker and backflow preventer
- Patent number 4,712,575
- Issue date Dec 15, 1987
- A. W. Cash Valve Manufacturing Corporation
- John E. Lair
- E03 - WATER SUPPLY SEWERAGE