Marubeni Plax Corporation

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Patents Grantslast 30 patents

Information Patent Grant
Check valve, pouch with the check valve, and manufacturing apparatu...
- Patent number 5,927,336
- Issue date Jul 27, 1999
- Kaken Kogyo Co., Ltd.
- Mikio Tanaka
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL