FR347222A - Orientation device - Google Patents

Orientation device

Info

Publication number
FR347222A
FR347222A FR347222DA FR347222A FR 347222 A FR347222 A FR 347222A FR 347222D A FR347222D A FR 347222DA FR 347222 A FR347222 A FR 347222A
Authority
FR
France
Prior art keywords
orientation device
orientation
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)
Inventor
Charles Brzostowicz
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.)
CHARLES BRZOSTOWICZ
Original Assignee
CHARLES BRZOSTOWICZ
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 CHARLES BRZOSTOWICZ filed Critical CHARLES BRZOSTOWICZ
Application granted granted Critical
Publication of FR347222A publication Critical patent/FR347222A/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
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/10—Comparing observed direction with north indication
    • G01C17/12—Comparing observed direction with north indication by sighting means, e.g. for surveyors' compasses

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR347222D 1904-10-19 1904-10-19 Orientation device Expired FR347222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR347222T 1904-10-19

Publications (1)

Publication Number Publication Date
FR347222A true FR347222A (en) 1905-02-28

Family

ID=1395872

Family Applications (1)

Application Number Title Priority Date Filing Date
FR347222D Expired FR347222A (en) 1904-10-19 1904-10-19 Orientation device

Country Status (1)

Country Link
FR (1) FR347222A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404752A (en) * 1981-06-03 1983-09-20 Hanna John W Clip-on compass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404752A (en) * 1981-06-03 1983-09-20 Hanna John W Clip-on compass

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