FR1464612A - Boussole - Google Patents

Boussole

Info

Publication number
FR1464612A
FR1464612A FR20527A FR20527A FR1464612A FR 1464612 A FR1464612 A FR 1464612A FR 20527 A FR20527 A FR 20527A FR 20527 A FR20527 A FR 20527A FR 1464612 A FR1464612 A FR 1464612A
Authority
FR
France
Prior art keywords
compass
Prior art date
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
FR20527A
Other languages
English (en)
Inventor
Henri Jules Chabbert
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 filed Critical
Priority to FR20527A priority Critical patent/FR1464612A/fr
Priority to BE682151D priority patent/BE682151A/xx
Priority to US555804A priority patent/US3373498A/en
Priority to DE19661548400 priority patent/DE1548400A1/de
Application granted granted Critical
Publication of FR1464612A publication Critical patent/FR1464612A/fr
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
FR20527A 1965-06-11 1965-06-11 Boussole Expired FR1464612A (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR20527A FR1464612A (fr) 1965-06-11 1965-06-11 Boussole
BE682151D BE682151A (fr) 1965-06-11 1966-06-06
US555804A US3373498A (en) 1965-06-11 1966-06-07 Magnetic compass
DE19661548400 DE1548400A1 (de) 1965-06-11 1966-06-10 Kompass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR20527A FR1464612A (fr) 1965-06-11 1965-06-11 Boussole

Publications (1)

Publication Number Publication Date
FR1464612A true FR1464612A (fr) 1967-01-06

Family

ID=8581743

Family Applications (1)

Application Number Title Priority Date Filing Date
FR20527A Expired FR1464612A (fr) 1965-06-11 1965-06-11 Boussole

Country Status (4)

Country Link
US (1) US3373498A (fr)
BE (1) BE682151A (fr)
DE (1) DE1548400A1 (fr)
FR (1) FR1464612A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4848002A (en) * 1988-04-21 1989-07-18 Carmona Angel G Self-centering needle-less magnetic compass
US6388575B1 (en) 1999-11-05 2002-05-14 Industrial Technology, Inc. Addressable underground marker
US6380857B1 (en) 2000-10-16 2002-04-30 Industrial Technology, Inc. Self leveling underground marker
US7118549B2 (en) * 2003-10-31 2006-10-10 Codman & Shurtleff, Inc. Shunt system including a flow control device for controlling the flow of cerebrospinal fluid out of a brain ventricle
US9234753B2 (en) * 2013-06-18 2016-01-12 Frank Sanns, Jr. Fluid or low friction permanent magnet compass

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US390115A (en) * 1888-09-25 Pateiok beenabd delany
US2260396A (en) * 1939-02-15 1941-10-28 Jr Carl L Otto Direction indicator
US3068583A (en) * 1960-04-06 1962-12-18 Charles E Goshen Flotation type compass

Also Published As

Publication number Publication date
US3373498A (en) 1968-03-19
DE1548400A1 (de) 1970-04-23
BE682151A (fr) 1966-12-06

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