Document Type and Number:
Japanese Patent JPS50133180
Kind Code:
U
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Application Number:
JP4283574U
Publication Date:
November 01, 1975
Filing Date:
April 18, 1974
Export Citation:
International Classes:
G01R31/24; G01L21/30; G01L21/32; (IPC1-7): G01L21/32; G01L31/25