FR37642E - Perfectionnements apportés aux compas - Google Patents

Perfectionnements apportés aux compas

Info

Publication number
FR37642E
FR37642E FR37642DA FR37642E FR 37642 E FR37642 E FR 37642E FR 37642D A FR37642D A FR 37642DA FR 37642 E FR37642 E FR 37642E
Authority
FR
France
Prior art keywords
compasses
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
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR37642E publication Critical patent/FR37642E/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
    • G01C17/02—Magnetic compasses
    • G01C17/28—Electromagnetic compasses
    • G01C17/30—Earth-inductor compasses

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
FR37642D 1929-11-19 1929-11-19 Perfectionnements apportés aux compas Expired FR37642E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR37642T 1929-11-19

Publications (1)

Publication Number Publication Date
FR37642E true FR37642E (fr) 1931-01-08

Family

ID=8674251

Family Applications (1)

Application Number Title Priority Date Filing Date
FR37642D Expired FR37642E (fr) 1929-11-19 1929-11-19 Perfectionnements apportés aux compas

Country Status (1)

Country Link
FR (1) FR37642E (fr)

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