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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5172320
Kind Code:
A
Inventors:
UMEHARA TERUO
Application Number:
JP14554974A
Publication Date:
June 23, 1976
Filing Date:
December 20, 1974
Export Citation:
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Assignee:
HITACHI METALS LTD
International Classes:
H04R9/02; H04R9/06; (IPC1-7): H04R9/06
Domestic Patent References:
JP35017156A