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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5399139
Kind Code:
U
More Like This:
Application Number:
JP459677U
Publication Date:
August 11, 1978
Filing Date:
January 17, 1977
Export Citation:
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International Classes:
G11B33/12; H04R1/00; H04R1/08; (IPC1-7): H04R1/08; G11B1/00
Domestic Patent References:
JP49108038B
JPS434449Y11968-02-26