Document Type and Number:
Japanese Patent JPS5432949
Kind Code:
Y2
Application Number:
JP8653973U
Publication Date:
October 12, 1979
Filing Date:
July 20, 1973
Export Citation:
International Classes:
G04B1/20; G04C1/06; G04C1/12; G04C15/00; H01H43/00; H01H43/10; (IPC1-7): G04B1/20; G04C1/12