Document Type and Number:
Japanese Patent JPS5755939
Kind Code:
Y2
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Application Number:
JP3908877U
Publication Date:
December 02, 1982
Filing Date:
March 30, 1977
Export Citation:
International Classes:
B63H21/38; B63B23/00; B63C9/02; B63H21/14; F01P3/20; F16K11/00; F16K11/056; F16K31/22; F16K33/00; (IPC1-7): F01P3/20; B63B23/00; F16K33/00