Document Type and Number:
Japanese Patent JPS6449877
Kind Code:
U
Application Number:
JP8211887U
Publication Date:
March 28, 1989
Filing Date:
May 30, 1987
Export Citation:
International Classes:
G09D3/06; (IPC1-7): G09D3/06
Domestic Patent References:
| JPS5842989U | 1983-03-23 | |||
| JP53138547B | ||||
| JP58107026B |