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Patent Searching and Data


Document Type and Number:
Japanese Patent JPH0243519
Kind Code:
Y2
Application Number:
JP7193784U
Publication Date:
November 19, 1990
Filing Date:
May 18, 1984
Export Citation:
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International Classes:
F17B1/20; C02F3/28; C02F11/04; (IPC1-7): C02F11/04; C02F3/28; F17B1/20