FR38852E - Perfectionnements apportés aux compas - Google Patents

Perfectionnements apportés aux compas

Info

Publication number
FR38852E
FR38852E FR38852DA FR38852E FR 38852 E FR38852 E FR 38852E FR 38852D A FR38852D A FR 38852DA FR 38852 E FR38852 E FR 38852E
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 FR38852E publication Critical patent/FR38852E/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)
FR38852D 1929-12-05 1929-12-05 Perfectionnements apportés aux compas Expired FR38852E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR38852T 1929-12-05

Publications (1)

Publication Number Publication Date
FR38852E true FR38852E (fr) 1931-08-08

Family

ID=8675311

Family Applications (1)

Application Number Title Priority Date Filing Date
FR38852D Expired FR38852E (fr) 1929-12-05 1929-12-05 Perfectionnements apportés aux compas

Country Status (1)

Country Link
FR (1) FR38852E (fr)

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