FR717749A - Ballon ininflammable - Google Patents

Ballon ininflammable

Info

Publication number
FR717749A
FR717749A FR717749DA FR717749A FR 717749 A FR717749 A FR 717749A FR 717749D A FR717749D A FR 717749DA FR 717749 A FR717749 A FR 717749A
Authority
FR
France
Prior art keywords
flammable
balloon
flammable balloon
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
English (en)
Inventor
Jean Letourneur
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 FR717749A publication Critical patent/FR717749A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64B—LIGHTER-THAN AIR AIRCRAFT
    • B64B1/00—Lighter-than-air aircraft
    • B64B1/58—Arrangements or construction of gas-bags; Filling arrangements
    • B64B1/62—Controlling gas pressure, heating, cooling, or discharging gas

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR717749D 1930-09-19 1930-09-19 Ballon ininflammable Expired FR717749A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR717749T 1930-09-19

Publications (1)

Publication Number Publication Date
FR717749A true FR717749A (fr) 1932-01-13

Family

ID=9090218

Family Applications (1)

Application Number Title Priority Date Filing Date
FR717749D Expired FR717749A (fr) 1930-09-19 1930-09-19 Ballon ininflammable

Country Status (1)

Country Link
FR (1) FR717749A (fr)

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