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Tokyo, JP
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last 30 patents
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Patent Grant
Article storage container
Patent number
4,798,310
Issue date
Jan 17, 1989
Platinum Pen Co., Ltd.
Kikuo Kasai
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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Patent Grant
Cap assembly for a single or plural writing instruments
Patent number
4,573,818
Issue date
Mar 4, 1986
Platinum Pen Co., Ltd.
Kimio Kodera
B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES