Document Type and Number:
Japanese Patent JPS5041845
Kind Code:
Y1
Application Number:
JP922969U
Publication Date:
November 28, 1975
Filing Date:
February 03, 1969
Export Citation:
International Classes:
G03B21/32; G03B1/02; G03B21/00; G11B15/32; G11B15/66; (IPC1-7): G11B15/32; G03B21/00; G11B15/66
Domestic Patent References:
| JP42025119A |