FI902917A0 - COMPASS. - Google Patents

COMPASS.

Info

Publication number
FI902917A0
FI902917A0 FI902917A FI902917A FI902917A0 FI 902917 A0 FI902917 A0 FI 902917A0 FI 902917 A FI902917 A FI 902917A FI 902917 A FI902917 A FI 902917A FI 902917 A0 FI902917 A0 FI 902917A0
Authority
FI
Finland
Prior art keywords
compass
Prior art date
Application number
FI902917A
Other languages
Finnish (fi)
Other versions
FI902917A (en
FI84756C (en
FI84756B (en
Inventor
Raimo Raitmaa
Original Assignee
Sisteco Ltd Oy
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.)
Filing date
Publication date
Application filed by Sisteco Ltd Oy filed Critical Sisteco Ltd Oy
Priority to FI902917A priority Critical patent/FI84756C/en
Publication of FI902917A0 publication Critical patent/FI902917A0/en
Priority to GB9110313A priority patent/GB2245063B/en
Application granted granted Critical
Publication of FI902917A publication Critical patent/FI902917A/en
Publication of FI84756B publication Critical patent/FI84756B/en
Publication of FI84756C publication Critical patent/FI84756C/en

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Supports Or Holders For Household Use (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
FI902917A 1990-06-11 1990-06-11 Compass FI84756C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI902917A FI84756C (en) 1990-06-11 1990-06-11 Compass
GB9110313A GB2245063B (en) 1990-06-11 1991-05-13 Compass

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI902917A FI84756C (en) 1990-06-11 1990-06-11 Compass
FI902917 1990-06-11

Publications (4)

Publication Number Publication Date
FI902917A0 true FI902917A0 (en) 1990-06-11
FI902917A FI902917A (en) 1991-09-30
FI84756B FI84756B (en) 1991-09-30
FI84756C FI84756C (en) 1992-01-10

Family

ID=8530610

Family Applications (1)

Application Number Title Priority Date Filing Date
FI902917A FI84756C (en) 1990-06-11 1990-06-11 Compass

Country Status (2)

Country Link
FI (1) FI84756C (en)
GB (1) GB2245063B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100437030C (en) * 2005-07-18 2008-11-26 何展辉 Automatic liquid feeding air discharge magnetic compass
CN106052662A (en) * 2016-08-12 2016-10-26 瑞安市顺风航仪有限公司 Magnetic compass
CN112525178B (en) * 2020-12-11 2022-06-24 许岩炯 Geological mineral exploration is with multi-functional geological compass

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB199988A (en) * 1922-09-05 1923-07-05 George Wilson Heath Improvements in mariners' compasses
GB442817A (en) * 1935-05-07 1936-02-17 Charles Henry Johnson Improvements in magnetic compasses
GB487757A (en) * 1937-12-23 1938-06-24 Johannes Boysen Improvements in liquid magnetic compasses
GB795255A (en) * 1955-06-04 1958-05-21 Rolex Montres An improved magnetic compass
GB2025616A (en) * 1978-07-13 1980-01-23 Hogg R J C Magnetic compass
EP0086618B1 (en) * 1982-02-12 1988-01-27 HALL & WATTS LIMITED Improvements relating to compasses
EP0100683B1 (en) * 1982-08-02 1986-10-22 S.G. Brown Limited Apparatus for taking azimuth sights
SE459370B (en) * 1984-01-20 1989-06-26 Jan Soederberg ORIENTATION COMPASS

Also Published As

Publication number Publication date
FI902917A (en) 1991-09-30
FI84756C (en) 1992-01-10
GB2245063B (en) 1994-05-11
GB9110313D0 (en) 1991-07-03
FI84756B (en) 1991-09-30
GB2245063A (en) 1991-12-18

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Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: OY SISTECO LTD.