FR883401A - - Google Patents

Info

Publication number
FR883401A
FR883401A FR883401DA FR883401A FR 883401 A FR883401 A FR 883401A FR 883401D A FR883401D A FR 883401DA FR 883401 A FR883401 A FR 883401A
Authority
FR
France
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
French (fr)
Publication date
Application granted granted Critical
Publication of FR883401A publication Critical patent/FR883401A/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)
FR883401D Expired FR883401A (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
FR883401A true FR883401A (enrdf_load_html_response) 1943-07-13

Family

ID=1556239

Family Applications (1)

Application Number Title Priority Date Filing Date
FR883401D Expired FR883401A (enrdf_load_html_response)

Country Status (1)

Country Link
FR (1) FR883401A (enrdf_load_html_response)

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