Title:
【考案の名称】超音波汚泥界面計
Document Type and Number:
Japanese Patent JPH04134031
Kind Code:
U
Inventors:
Takashi Sasaki
Yoshinobu Egashira
Yoshinobu Egashira
Application Number:
JP4956991U
Publication Date:
December 14, 1992
Filing Date:
June 03, 1991
Export Citation:
International Classes:
G01F23/28; (IPC1-7): G01F23/28
Domestic Patent References:
| JP56138322B | ||||
| JPS5714025B2 | 1982-03-20 |