Document Type and Number:
Japanese Patent JPH02117993
Kind Code:
U
Application Number:
JP2726489U
Publication Date:
September 21, 1990
Filing Date:
March 13, 1989
Export Citation:
International Classes:
E02B15/06; B63B22/12; (IPC1-7): B63B22/12; E02B15/06
Domestic Patent References:
| JPS5810451U | 1983-01-22 | |||
| JPS5132395U | 1976-03-09 |