Russell Johnson Challis

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Berkshire, GB

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Patents Grantslast 30 patents

Information Patent Grant
Air inductor
- Patent number 8,746,594
- Issue date Jun 10, 2014
- A L Challis Limited
- Russell Johnson Challis
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
Air Inductor
- Publication number 20120006435
- Publication date Jan 12, 2012
- A L CHALLIS LIMITED
- Russell Johnson Challis
- E03 - WATER SUPPLY SEWERAGE