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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5242639
Kind Code:
U
More Like This:
Application Number:
JP12895275U
Publication Date:
March 26, 1977
Filing Date:
September 22, 1975
Export Citation:
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International Classes:
G03B21/56; G03B21/58; G03B31/00; (IPC1-7): G03B21/58; G03B31/00
Domestic Patent References:
JPS3732171Y1



 
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