FR774576A - Improvements to liquid compasses used in aviation, navy, etc. - Google Patents

Improvements to liquid compasses used in aviation, navy, etc.

Info

Publication number
FR774576A
FR774576A FR774576DA FR774576A FR 774576 A FR774576 A FR 774576A FR 774576D A FR774576D A FR 774576DA FR 774576 A FR774576 A FR 774576A
Authority
FR
France
Prior art keywords
navy
aviation
liquid
compasses used
liquid 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.)
AERA ETS
Original Assignee
AERA ETS
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 AERA ETS filed Critical AERA ETS
Application granted granted Critical
Publication of FR774576A publication Critical patent/FR774576A/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
FR774576D 1934-06-15 1934-06-15 Improvements to liquid compasses used in aviation, navy, etc. Expired FR774576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR774576T 1934-06-15

Publications (1)

Publication Number Publication Date
FR774576A true FR774576A (en) 1934-12-08

Family

ID=9199956

Family Applications (1)

Application Number Title Priority Date Filing Date
FR774576D Expired FR774576A (en) 1934-06-15 1934-06-15 Improvements to liquid compasses used in aviation, navy, etc.

Country Status (1)

Country Link
FR (1) FR774576A (en)

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