Title:
【考案の名称】方位盤
Document Type and Number:
Japanese Patent JPS59162613
Kind Code:
U
Inventors:
Kinji Shimizu
Application Number:
JP5724783U
Publication Date:
October 31, 1984
Filing Date:
April 16, 1983
Export Citation:
International Classes:
G01C17/00; G06C3/00; (IPC1-7): G01C17/00; G06C3/00
Domestic Patent References:
| JP54145164B | ||||
| JPS554246A | 1980-01-12 |