Document Type and Number:
Japanese Patent JPH02122851
Kind Code:
U
Application Number:
JP2851089U
Publication Date:
October 09, 1990
Filing Date:
March 15, 1989
Export Citation:
International Classes:
E04H4/06; E04H4/00; (IPC1-7): E04H4/06; E04H3/19
Domestic Patent References:
| JP61079096B | ||||
| JPS6154587B2 | 1986-11-22 | |||
| JP60188294B |