Kung-chien Chang

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Pico Rivera, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Safety device for a double valve arrangement for beer keg
- Patent number 6,367,660
- Issue date Apr 9, 2002
- Kung-chien Chang
- B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...