Document Type and Number:
Japanese Patent JPS53137497
Kind Code:
U
Application Number:
JP4095277U
Publication Date:
October 31, 1978
Filing Date:
April 04, 1977
Export Citation:
International Classes:
B63B21/20; B63B21/00; (IPC1-7): B63B21/00
Previous Patent: JPS53137496
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