Charles R. Johnstone

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River Grove, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Extendable and retractable utility line system
- Patent number 7,077,650
- Issue date Jul 18, 2006
- Charles R. Johnstone
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Extendable and retractable utility line system
- Publication number 20050208451
- Publication date Sep 22, 2005
- Charles R. Johnstone
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE