FR928873A - Improvements to position marking devices - Google Patents

Improvements to position marking devices

Info

Publication number
FR928873A
FR928873A FR928873DA FR928873A FR 928873 A FR928873 A FR 928873A FR 928873D A FR928873D A FR 928873DA FR 928873 A FR928873 A FR 928873A
Authority
FR
France
Prior art keywords
marking devices
position marking
devices
marking
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
Frank Joel Lundburg
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR928873A publication Critical patent/FR928873A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/04—Position of source determined by a plurality of spaced direction-finders

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR928873D 1946-05-18 1946-05-18 Improvements to position marking devices Expired FR928873A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR928873T 1946-05-18

Publications (1)

Publication Number Publication Date
FR928873A true FR928873A (en) 1947-12-10

Family

ID=9442097

Family Applications (1)

Application Number Title Priority Date Filing Date
FR928873D Expired FR928873A (en) 1946-05-18 1946-05-18 Improvements to position marking devices

Country Status (1)

Country Link
FR (1) FR928873A (en)

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