FR442088A - Point compass for air travel - Google Patents

Point compass for air travel

Info

Publication number
FR442088A
FR442088A FR442088DA FR442088A FR 442088 A FR442088 A FR 442088A FR 442088D A FR442088D A FR 442088DA FR 442088 A FR442088 A FR 442088A
Authority
FR
France
Prior art keywords
air travel
point compass
compass
point
travel
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
Jules Leloup
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.)
JULES LELOUP
Original Assignee
JULES LELOUP
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 JULES LELOUP filed Critical JULES LELOUP
Application granted granted Critical
Publication of FR442088A publication Critical patent/FR442088A/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
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/02—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by astronomical means
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
    • E21B33/138—Plastering the borehole wall; Injecting into the formation
FR442088D 1912-03-19 1912-03-19 Point compass for air travel Expired FR442088A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR442088T 1912-03-19

Publications (1)

Publication Number Publication Date
FR442088A true FR442088A (en) 1912-08-23

Family

ID=1483283

Family Applications (1)

Application Number Title Priority Date Filing Date
FR442088D Expired FR442088A (en) 1912-03-19 1912-03-19 Point compass for air travel

Country Status (1)

Country Link
FR (1) FR442088A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473487A (en) * 1945-05-19 1949-06-14 Robert W Byerly Time-interval indicator
US2615249A (en) * 1951-11-08 1952-10-28 Gerard A Allard Atomic air burst direction finder
US3184846A (en) * 1961-01-12 1965-05-25 Litton Systems Inc Direction and position indicating apparatus for vehicles such as aircraft

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473487A (en) * 1945-05-19 1949-06-14 Robert W Byerly Time-interval indicator
US2615249A (en) * 1951-11-08 1952-10-28 Gerard A Allard Atomic air burst direction finder
US3184846A (en) * 1961-01-12 1965-05-25 Litton Systems Inc Direction and position indicating apparatus for vehicles such as aircraft

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