Document Type and Number:
Japanese Patent JPS50156344
Kind Code:
A
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Application Number:
JP6371274A
Publication Date:
December 17, 1975
Filing Date:
June 04, 1974
Export Citation:
International Classes:
H04B10/60; G02B27/00; H03H1/00; H04B10/40; H04B10/50; H04B10/80; (IPC1-7): G02B5/14; H03H1/00