Document Type and Number:
Japanese Patent JPS4427584
Kind Code:
Y1
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Application Number:
JP5837864U
Publication Date:
November 17, 1969
Filing Date:
July 24, 1964
Export Citation:
International Classes:
E01H3/04; F04B49/02; F04B49/06; (IPC1-7): F04B49/02; E01H3/04; F04B49/06