Document Type and Number:
Japanese Patent JPS5645835
Kind Code:
U
Application Number:
JP12654079U
Publication Date:
April 24, 1981
Filing Date:
September 13, 1979
Export Citation:
International Classes:
G03B7/10; G03B9/07; G03B19/18; G03B21/34; G03B21/36; H04N5/238; (IPC1-7): G03B21/36; G03B7/10; H04N5/26
Domestic Patent References:
| JPS4222371Y1 | 1967-12-20 | |||
| JPS5267338U | 1977-05-18 |
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