FR829728A - Improvements to navigation compasses - Google Patents

Improvements to navigation compasses

Info

Publication number
FR829728A
FR829728A FR829728DA FR829728A FR 829728 A FR829728 A FR 829728A FR 829728D A FR829728D A FR 829728DA FR 829728 A FR829728 A FR 829728A
Authority
FR
France
Prior art keywords
compasses
navigation
navigation 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.)
CH BIANCHETTI ET CIE
Original Assignee
CH BIANCHETTI ET CIE
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 CH BIANCHETTI ET CIE filed Critical CH BIANCHETTI ET CIE
Application granted granted Critical
Publication of FR829728A publication Critical patent/FR829728A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR829728D 1937-11-23 1937-11-23 Improvements to navigation compasses Expired FR829728A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR829728T 1937-11-23

Publications (1)

Publication Number Publication Date
FR829728A true FR829728A (en) 1938-07-05

Family

ID=9284482

Family Applications (1)

Application Number Title Priority Date Filing Date
FR829728D Expired FR829728A (en) 1937-11-23 1937-11-23 Improvements to navigation compasses

Country Status (1)

Country Link
FR (1) FR829728A (en)

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