Document Type and Number:
Japanese Patent JPS50136031
Kind Code:
A
Application Number:
JP3542774A
Publication Date:
October 28, 1975
Filing Date:
March 28, 1974
Export Citation:
International Classes:
G03C7/42; G03C5/38; (IPC1-7): G03C5/38
Domestic Patent References:
JPS495535A | 1974-01-18 | |||
JPS495630A | 1974-01-18 | |||
JP45008836A | ||||
JPS46556A | ||||
JPS495335A | 1974-01-18 |
Foreign References:
GB1192481A | 1970-05-20 |