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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4611381
Kind Code:
Y1
Application Number:
JP8917067U
Publication Date:
April 20, 1971
Filing Date:
October 20, 1967
Export Citation:
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International Classes:
(IPC1-7): H03F3/187; H03D1/00; H03G3/12; H04N5/48