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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5622170
Kind Code:
B2
Application Number:
JP3207474A
Publication Date:
May 23, 1981
Filing Date:
March 20, 1974
Export Citation:
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International Classes:
H03K17/30; H01H36/00; H03K17/00; H03K17/945; H03K17/955