FR41757E - Improvements to guide compasses - Google Patents

Improvements to guide compasses

Info

Publication number
FR41757E
FR41757E FR41757DA FR41757E FR 41757 E FR41757 E FR 41757E FR 41757D A FR41757D A FR 41757DA FR 41757 E FR41757 E FR 41757E
Authority
FR
France
Prior art keywords
compasses
guide
guide 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
French (fr)
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 FR41757E publication Critical patent/FR41757E/en
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
    • G01C17/38—Testing, calibrating, or compensating of compasses

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR41757D 1932-04-27 1932-04-27 Improvements to guide compasses Expired FR41757E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR41757T 1932-04-27

Publications (1)

Publication Number Publication Date
FR41757E true FR41757E (en) 1933-04-13

Family

ID=8677882

Family Applications (1)

Application Number Title Priority Date Filing Date
FR41757D Expired FR41757E (en) 1932-04-27 1932-04-27 Improvements to guide compasses

Country Status (1)

Country Link
FR (1) FR41757E (en)

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