Title:
STUDY APPARATUS
Document Type and Number:
Japanese Patent JPS5857170
Kind Code:
A
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Inventors:
YOSHIDA KUNIO
AKIZUKI NOBORU
AKIZUKI NOBORU
Application Number:
JP15689081A
Publication Date:
April 05, 1983
Filing Date:
September 30, 1981
Export Citation:
Assignee:
SHARP KK
International Classes:
G09B7/02; G06Q50/00; G06Q50/10; G06Q50/20; G09B19/06; (IPC1-7): G06F15/20; G09B7/02; G09B19/06
Domestic Patent References:
| JPS55118182A | 1980-09-10 |
Attorney, Agent or Firm:
Aoyama