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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS6210394
Kind Code:
B2
Inventors:
NAKAYAMA KEIJI
Application Number:
JP1601180A
Publication Date:
March 05, 1987
Filing Date:
February 14, 1980
Export Citation:
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Assignee:
NAKAYAMA KEIJI
International Classes:
G01V7/00; G01H9/00; G01P15/08; G04C3/02; G09B23/10