Document Type and Number:
Japanese Patent JPS4717659
Kind Code:
U
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Application Number:
JP2228071U
Publication Date:
October 30, 1972
Filing Date:
March 29, 1971
Export Citation:
International Classes:
G01V7/00; G01M7/08; G01V7/14; G09B23/08; (IPC1-7): G01V7/14