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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4959540
Kind Code:
U
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Application Number:
JP10195472U
Publication Date:
May 25, 1974
Filing Date:
August 31, 1972
Export Citation:
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International Classes:
G03B31/06; G03B31/00; (IPC1-7): G03B31/00
Domestic Patent References:
JPS3919861Y1



 
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