Document Type and Number:
Japanese Patent JPS5214177
Kind Code:
Y2
Application Number:
JP9938973U
Publication Date:
March 30, 1977
Filing Date:
August 24, 1973
Export Citation:
International Classes:
G10K11/16; A47H23/02; E04B1/82; G10K11/02; (IPC1-7): A47H23/02; E04B1/82; G10K11/02