Document Type and Number:
Japanese Patent JPS5136792
Kind Code:
U
Application Number:
JP11012874U
Publication Date:
March 18, 1976
Filing Date:
September 11, 1974
Export Citation:
International Classes:
B06B1/12; B06B3/00; G10K15/00; H03J9/00; H03J9/04; H04B11/00; H04N5/00; H04Q9/08; H04Q9/12; (IPC1-7): B06B1/12; H04B11/00; H04N5/44; H04Q9/08