FR548875A - Ship track marker - Google Patents

Ship track marker

Info

Publication number
FR548875A
FR548875A FR548875DA FR548875A FR 548875 A FR548875 A FR 548875A FR 548875D A FR548875D A FR 548875DA FR 548875 A FR548875 A FR 548875A
Authority
FR
France
Prior art keywords
ship track
track marker
marker
ship
track
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
Marie-Emile-Alfred Baule
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 filed Critical
Application granted granted Critical
Publication of FR548875A publication Critical patent/FR548875A/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
FR548875D 1921-07-19 1921-07-19 Ship track marker Expired FR548875A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR548875T 1921-07-19

Publications (1)

Publication Number Publication Date
FR548875A true FR548875A (en) 1923-01-27

Family

ID=8935128

Family Applications (1)

Application Number Title Priority Date Filing Date
FR548875D Expired FR548875A (en) 1921-07-19 1921-07-19 Ship track marker

Country Status (1)

Country Link
FR (1) FR548875A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749205A (en) * 1944-08-25 1956-06-05 Otto H Schmitt Trace recording with identification marking on the trace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749205A (en) * 1944-08-25 1956-06-05 Otto H Schmitt Trace recording with identification marking on the trace

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