Document Type and Number:
Japanese Patent JPS4895665
Kind Code:
U
Application Number:
JP1922672U
Publication Date:
November 14, 1973
Filing Date:
February 15, 1972
Export Citation:
International Classes:
G04B19/243; G04B19/24; G09D3/00; G09D3/12; (IPC1-7): G04B19/24