Document Type and Number:
Japanese Patent JPS5317690
Kind Code:
Y2
More Like This:
| JPH03171895 | SOUND SIGNAL INPUT DEVICE |
Application Number:
JP6577973U
Publication Date:
May 12, 1978
Filing Date:
June 05, 1973
Export Citation:
International Classes:
H04R1/04; H04B1/04; H04R3/00; (IPC1-7): H04B1/04