Cyril A. Randall

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Belmont, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
In-line back flow preventer
- Patent number 4,420,010
- Issue date Dec 13, 1983
- Amtrol Inc.
- Bernard B. Becker
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
In line back flow preventer
- Patent number 4,284,097
- Issue date Aug 18, 1981
- Amtrol Inc.
- Bernard B. Becker
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
In line back flow preventer
- Patent number 4,232,704
- Issue date Nov 11, 1980
- Amtrol Inc.
- Bernard S. Becker
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Back flow preventer
- Patent number 4,207,915
- Issue date Jun 17, 1980
- Amtrol, Inc.
- Bernard B. Becker
- E03 - WATER SUPPLY SEWERAGE