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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS50118720
Kind Code:
A
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Application Number:
JP2350074A
Publication Date:
September 17, 1975
Filing Date:
February 27, 1974
Export Citation:
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International Classes:
G03B21/11; G03B23/04; (IPC1-7): G03B23/04



 
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