Kazumi Ishigaki

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Hirakata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Package of mechanical pencil refill leads
- Patent number 4,266,667
- Issue date May 12, 1981
- Sakura Color Products Corporation
- Kazumi Ishigaki
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL