Title:
DIRECTION FINDER USING SOUND WAVE
Document Type and Number:
Japanese Patent JPS52108158
Kind Code:
A
Inventors:
UEDA MITSUHIRO
Application Number:
JP2544176A
Publication Date:
September 10, 1977
Filing Date:
March 08, 1976
Export Citation:
Assignee:
TOKYO KOUGIYOU DAIGAKUCHIYOU
International Classes:
A61B8/00; G01S3/80; G01S3/808; G01S15/42; G01S15/88; (IPC1-7): G01S3/80
Domestic Patent References:
| JPS4916771U | 1974-02-13 |
Foreign References:
| US3445806A | 1969-05-20 |