Document Type and Number:
Japanese Patent JPS5346866
Kind Code:
U
Application Number:
JP12962176U
Publication Date:
April 20, 1978
Filing Date:
September 27, 1976
Export Citation:
International Classes:
G04C3/14; G04B19/00; G04B19/20; G04B45/00; G04G9/00; G04G17/02; (IPC1-7): G04B19/00; G04B19/20