FR479121A - Improvements to course indicators for ships - Google Patents

Improvements to course indicators for ships

Info

Publication number
FR479121A
FR479121A FR479121DA FR479121A FR 479121 A FR479121 A FR 479121A FR 479121D A FR479121D A FR 479121DA FR 479121 A FR479121 A FR 479121A
Authority
FR
France
Prior art keywords
ships
course indicators
indicators
course
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.)
Sperry Gyroscope Co Ltd
Sperry Gyroscope Co Inc
Original Assignee
Sperry Gyroscope Co Ltd
Sperry Gyroscope Co Inc
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 Sperry Gyroscope Co Ltd, Sperry Gyroscope Co Inc filed Critical Sperry Gyroscope Co Ltd
Application granted granted Critical
Publication of FR479121A publication Critical patent/FR479121A/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)
FR479121D 1914-08-04 1915-06-28 Improvements to course indicators for ships Expired FR479121A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US479121XA 1914-08-04 1914-08-04

Publications (1)

Publication Number Publication Date
FR479121A true FR479121A (en) 1916-02-16

Family

ID=1516546

Family Applications (1)

Application Number Title Priority Date Filing Date
FR479121D Expired FR479121A (en) 1914-08-04 1915-06-28 Improvements to course indicators for ships

Country Status (1)

Country Link
FR (1) FR479121A (en)

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