Document Type and Number:
Japanese Patent JPS5116723
Kind Code:
Y1
Application Number:
JP1746770U
Publication Date:
May 07, 1976
Filing Date:
February 24, 1970
Export Citation:
International Classes:
G03B31/04; G11B15/10; G11B15/22; G11B31/00; (IPC1-7): G11B15/22; G03B31/04; G11B31/00
Domestic Patent References:
| JPS3610349Y1 | ||||
| JP39028078A |
Foreign References:
| GB894269A | 1962-04-18 |