FI811779L - Anordning vid kompasser - Google Patents

Anordning vid kompasser

Info

Publication number: FI811779L
Authority: FI; Finland
Prior art keywords: anording; compass
Prior art date: 1980-06-26

Application number

FI811779A

Other languages

English (en)

Other versions

FI71196C (fi

FI71196B (fi

Inventor

Holger Meiling

Original Assignee

Instrument Verken Ab

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.)

1980-06-26

Filing date

1981-06-09

Publication date

1981-12-27

1981-06-09 Application filed by Instrument Verken Ab filed Critical Instrument Verken Ab

1981-12-27 Publication of FI811779L publication Critical patent/FI811779L/fi

1986-08-14 Application granted granted Critical

1986-08-14 Publication of FI71196B publication Critical patent/FI71196B/fi

1986-11-24 Publication of FI71196C publication Critical patent/FI71196C/fi

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
- G01C17/02—Magnetic compasses
- G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
- G01C17/20—Observing the compass card or needle
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
- G01C17/02—Magnetic compasses
- G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
- G01C17/10—Comparing observed direction with north indication
- G01C17/14—Comparing observed direction with north indication by reference marks, e.g. for ships' compasses

Landscapes

Engineering & Computer Science (AREA)
Radar, Positioning & Navigation (AREA)
Remote Sensing (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Spectrometry And Color Measurement (AREA)
Lenses (AREA)

FI811779A 1980-06-26 1981-06-09 Anordning vid kompasser FI71196C (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE8004749		1980-06-26
SE8004749A SE420127B (sv)	1980-06-26	1980-06-26	Anordning vid kompasser

Publications (3)

Publication Number	Publication Date
FI811779L true FI811779L (fi)	1981-12-27
FI71196B FI71196B (fi)	1986-08-14
FI71196C FI71196C (fi)	1986-11-24

Family

ID=20341304

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI811779A FI71196C (fi)	1980-06-26	1981-06-09	Anordning vid kompasser

Country Status (3)

Country	Link
FI (1)	FI71196C (fi)
FR (1)	FR2485721A1 (fi)
SE (1)	SE420127B (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE438553B (sv) *	1983-09-09	1985-04-22	Instrument Verken Ab	Anordning for att forhindra felvisning av en kompass

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB551165A (en) *	1941-08-06	1943-02-10	Harold Clifford Prins	Improved navigational instrument
GB1095966A (en) *	1965-11-04	1967-12-20	Eastern Co	Magnetic compass

1980
- 1980-06-26 SE SE8004749A patent/SE420127B/sv not_active IP Right Cessation
1981
- 1981-06-09 FI FI811779A patent/FI71196C/fi not_active IP Right Cessation
- 1981-06-25 FR FR8112991A patent/FR2485721A1/fr active Granted

Also Published As

Publication number	Publication date
FI71196C (fi)	1986-11-24
FR2485721B1 (fi)	1984-05-11
SE420127B (sv)	1981-09-14
FI71196B (fi)	1986-08-14
FR2485721A1 (fr)	1981-12-31

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Legal Events

Date	Code	Title	Description
1993-06-09	MM	Patent lapsed
2004-08-31	MM	Patent lapsed	Owner name: INSTRUMENTVERKEN AB