Chang Duk Jeon

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Chungju, KR

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Patents Grantslast 30 patents

Information Patent Grant
Alternating type heat pump
- Patent number 9,651,281
- Issue date May 16, 2017
- Chang Duk Jeon
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Patents Applicationslast 30 patents

Information Patent Application
ALTERNATING TYPE HEAT PUMP
- Publication number 20130139533
- Publication date Jun 6, 2013
- Chang Duk Jeon
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...