Document Type and Number:
Japanese Patent JPS6227430
Kind Code:
B2
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Inventors:
EZAWA NOBUYASU
TSUCHA AKIZO
TSUCHA AKIZO
Application Number:
JP8203279A
Publication Date:
June 15, 1987
Filing Date:
June 30, 1979
Export Citation:
Assignee:
TANAKA PRECIOUS METAL IND
International Classes:
G06C3/00; G06G1/08; G06G1/10