Zichun Yin

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Si Chuan, CN

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Patents Grantslast 30 patents

Information Patent Grant
File shredder with feed unit
- Patent number 7,721,982
- Issue date May 25, 2010
- Hermann Schwelling
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...

Patents Applicationslast 30 patents

Information Patent Application
File shredder with feed unit
- Publication number 20080210794
- Publication date Sep 4, 2008
- Hermann Schwelling
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...