Title:
【考案の名称】可変指向性マイクロホン
Document Type and Number:
Japanese Patent JPS59101592
Kind Code:
U
Inventors:
Ichiro Shimizu
Application Number:
JP20226082U
Publication Date:
July 09, 1984
Filing Date:
December 24, 1982
Export Citation:
International Classes:
H04R1/00; G03B31/00; H04R1/02; H04R1/38; (IPC1-7): H04R1/38; G03B31/00; H04R1/00