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last 30 patents
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Patent Grant
Apparatus for making pitch fiber infusible
Patent number
4,283,369
Issue date
Aug 11, 1981
Kureha Kagaku Kogyo Kabushiki Kaisha
Hisatsugu Kaji
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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Patent Grant
Method of and apparatus for making pitch fiber infusible
Patent number
4,265,869
Issue date
May 5, 1981
Kureha Kagaku Kogyo Kabushiki Kaisha
Hisatsugu Kaji
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING