Document Type and Number:
Japanese Patent JPS5420609
Kind Code:
U
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Application Number:
JP9264877U
Publication Date:
February 09, 1979
Filing Date:
July 14, 1977
Export Citation:
International Classes:
H04B10/11; H04B10/114; H04H5/00; H04R5/00; H04S7/00; (IPC1-7): H04H5/00; H04B9/00; H04R5/00
Domestic Patent References:
| JPS4737005A |