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Document Type and Number:
Japanese Patent JPS5087664
Kind Code:
A
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Application Number:
JP13845473A
Publication Date:
July 14, 1975
Filing Date:
December 05, 1973
Export Citation:
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International Classes:
G02B6/12; G02F1/17; G02F1/19; (IPC1-7): G02B5/14; G02F1/19
Foreign References:
US3442568A1969-05-06



 
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