Title:
OPTICAL INSTRUCTION DEVICE
Document Type and Number:
Japanese Patent JPS55111981
Kind Code:
A
Inventors:
HIROSE TSUNEO
TANAKA SHINICHI
TANAKA SHINICHI
Application Number:
JP1917679A
Publication Date:
August 29, 1980
Filing Date:
February 20, 1979
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G09B19/00; G02B5/00; G02B27/20; G09B29/10; (IPC1-7): G02B27/20; G09B29/10