Document Type and Number:
Japanese Patent JPS5521681
Kind Code:
U
Application Number:
JP10479378U
Publication Date:
February 12, 1980
Filing Date:
July 29, 1978
Export Citation:
International Classes:
B60R11/02; H04H20/53; H04H20/83; H04H20/88; H04R5/04; H04R27/00; H04S1/00; H04H5/00; (IPC1-7): H04R5/04; B60R11/02; H04R27/00
Domestic Patent References:
| JP48085601B | ||||
| JPS4931301A | 1974-03-20 |