FR820825A - Improvements made to navigation instruments - Google Patents

Improvements made to navigation instruments

Info

Publication number: FR820825A
Authority: FR; France
Prior art keywords: improvements made; navigation instruments; navigation; instruments
Prior art date: 1937-04-19
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

Other languages

Inventor

Joseph Claypoole Clark

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1937-04-19

Filing date

1937-04-19

Publication date

1937-11-19

1937-04-19 Application filed filed Critical

1937-11-19 Application granted granted Critical

1937-11-19 Publication of FR820825A publication Critical patent/FR820825A/en

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/02—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by astronomical means

Landscapes

Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Radar, Positioning & Navigation (AREA)
Remote Sensing (AREA)
Astronomy & Astrophysics (AREA)
Automation & Control Theory (AREA)
General Physics & Mathematics (AREA)

FR820825D 1937-04-19 1937-04-19 Improvements made to navigation instruments Expired FR820825A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR820825T		1937-04-19

Publications (1)

Publication Number	Publication Date
FR820825A true FR820825A (en)	1937-11-19

Family

ID=9273955

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR820825D Expired FR820825A (en)	1937-04-19	1937-04-19	Improvements made to navigation instruments

Country Status (1)

Country	Link
FR (1)	FR820825A (en)

1937
- 1937-04-19 FR FR820825D patent/FR820825A/en not_active Expired

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