Document Type and Number:
Japanese Patent JPS56153970
Kind Code:
U
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JP2007226163 | SCIENCE EXPERIMENTAL INSTRUMENT CARD |
Application Number:
JP5052480U
Publication Date:
November 17, 1981
Filing Date:
April 16, 1980
Export Citation:
International Classes:
G09B3/04; G09B19/00; (IPC1-7): G09B19/00