Title:
【発明の名称】真北測定方法
Document Type and Number:
Japanese Patent JP2602446
Kind Code:
B2
Inventors:
Kiyoo Inada
Application Number:
JP9564388A
Publication Date:
April 23, 1997
Filing Date:
April 20, 1988
Export Citation:
Assignee:
Sokia Co., Ltd.
International Classes:
G01C19/38; (IPC1-7): G01C19/38
Domestic Patent References:
| JP1269009A | ||||
| JP59180325A | ||||
| JP59135310A | ||||
| JP50118751A | ||||
| JP5137549B2 |
Attorney, Agent or Firm:
Fumio Sato (2 others)