Title:
【考案の名称】水準器
Document Type and Number:
Japanese Patent JPS59180616
Kind Code:
U
Inventors:
Takayama second son
Application Number:
JP7637183U
Publication Date:
December 03, 1984
Filing Date:
May 20, 1983
Export Citation:
International Classes:
G01C9/24; G01C9/36; (IPC1-7): G01C9/36
Domestic Patent References:
| JP49075364B |