Colin D. Johnstone

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Annan, GB

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Patents Grantslast 30 patents

Information Patent Grant
Conditioned vestibule for a cold storage doorway
- Patent number 6,960,129
- Issue date Nov 1, 2005
- HCR Incorporated
- Paul Ashley
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Patents Applicationslast 30 patents

Information Patent Application
Conditioned vestibule for a cold storage doorway
- Publication number 20060199497
- Publication date Sep 7, 2006
- Peter R. Smith
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
Conditioned vestibule for a cold storage doorway
- Publication number 20040192187
- Publication date Sep 30, 2004
- Paul Ashley
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...