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FR680957A - Improvements at airports - Google Patents

Improvements at airports

Info

Publication number
FR680957A
FR680957A FR680957DA FR680957A FR 680957 A FR680957 A FR 680957A FR 680957D A FR680957D A FR 680957DA FR 680957 A FR680957 A FR 680957A
Authority
FR
France
Prior art keywords
airports
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
John Shearman Donaldson
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 FR680957A publication Critical patent/FR680957A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F1/00—Ground or aircraft-carrier-deck installations
    • B64F1/18—Visual or acoustic landing aids
    • B64F1/20—Arrangement of optical beacons

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR680957D 1928-08-30 1929-08-29 Improvements at airports Expired FR680957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US680957XA 1928-08-30 1928-08-30

Publications (1)

Publication Number Publication Date
FR680957A true FR680957A (en) 1930-05-08

Family

ID=22080377

Family Applications (1)

Application Number Title Priority Date Filing Date
FR680957D Expired FR680957A (en) 1928-08-30 1929-08-29 Improvements at airports

Country Status (1)

Country Link
FR (1) FR680957A (en)

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