Document Type and Number:
Japanese Patent JPS52131157
Kind Code:
U
Application Number:
JP883777U
Publication Date:
October 05, 1977
Filing Date:
January 29, 1977
Export Citation:
International Classes:
G09D3/10; (IPC1-7): G09D3/10
Domestic Patent References:
| JPS3818642Y1 | ||||
| JPH08307Y1 |