Document Type and Number:
Japanese Patent JPS5281035
Kind Code:
U
Application Number:
JP16954575U
Publication Date:
June 16, 1977
Filing Date:
December 15, 1975
Export Citation:
International Classes:
G04B19/21; G04B29/04; G06M1/02; G06M1/26; G06M1/28; G06M1/30; (IPC1-7): G06M1/28