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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS56134020
Kind Code:
U
More Like This:
Application Number:
JP18862380U
Publication Date:
October 12, 1981
Filing Date:
December 26, 1980
Export Citation:
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International Classes:
G03B7/097; (IPC1-7): G03B7/097
Domestic Patent References:
JPS5011432A1975-02-05
JPS3935291Y1
JPS37862Y1
JPS4815524A