Djang-Jer Lee

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Hsinchu Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for controlling air-exchange and pressure and detecting a...
- Patent number 5,228,306
- Issue date Jul 20, 1993
- Norm Pacific Automation Corp.
- Jia-Ming Shyu
- F24 - HEATING RANGES VENTILATING