Document Type and Number:
Japanese Patent JPS5522231
Kind Code:
U
Application Number:
JP10563378U
Publication Date:
February 13, 1980
Filing Date:
July 31, 1978
Export Citation:
International Classes:
B63B17/02; B63B5/24; B63B35/73; (IPC1-7): B63B35/72; B63B5/24; B63B17/02
Domestic Patent References:
| JPS4933764A | 1974-03-28 | |||
| JPS3412324Y1 |