Document Type and Number:
Japanese Patent JPS50110652
Kind Code:
U
Application Number:
JP2052574U
Publication Date:
September 09, 1975
Filing Date:
February 20, 1974
Export Citation:
International Classes:
G03B31/00; G11B17/22; (IPC1-7): G03B31/00; G11B17/22
Domestic Patent References:
| JPS3515660Y1 |