Document Type and Number:
Japanese Patent JPS6417891
Kind Code:
U
Application Number:
JP11284387U
Publication Date:
January 30, 1989
Filing Date:
July 23, 1987
Export Citation:
International Classes:
B63B5/24; (IPC1-7): B63B5/24
Domestic Patent References:
| JPS4944499A | 1974-04-26 |
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