Stephen Kwok Ki Chan

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Kowloon Tong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Shredding mechanism for paper
- Patent number 8,418,947
- Issue date Apr 16, 2013
- Stephen Kwok Ki Chan
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...

Patents Applicationslast 30 patents

Information Patent Application
PAPER SHREDDER
- Publication number 20180361389
- Publication date Dec 20, 2018
- Stephen Kwok Ki Chan
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...