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FR883940A - Blackout device for anti-aircraft defense in industrial installations - Google Patents

Blackout device for anti-aircraft defense in industrial installations

Info

Publication number
FR883940A
FR883940A FR883940DA FR883940A FR 883940 A FR883940 A FR 883940A FR 883940D A FR883940D A FR 883940DA FR 883940 A FR883940 A FR 883940A
Authority
FR
France
Prior art keywords
industrial installations
blackout device
aircraft defense
defense
aircraft
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.)
VER HU TTENWERKE BURBACH EICH
Original Assignee
VER HU TTENWERKE BURBACH EICH
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 VER HU TTENWERKE BURBACH EICH filed Critical VER HU TTENWERKE BURBACH EICH
Application granted granted Critical
Publication of FR883940A publication Critical patent/FR883940A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
    • E06B7/08—Louvre doors, windows or grilles
    • E06B7/082—Louvre doors, windows or grilles with rigid or slidable lamellae

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
FR883940D 1941-04-21 1942-07-07 Blackout device for anti-aircraft defense in industrial installations Expired FR883940A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE883940X 1941-04-21

Publications (1)

Publication Number Publication Date
FR883940A true FR883940A (en) 1943-07-26

Family

ID=6832232

Family Applications (1)

Application Number Title Priority Date Filing Date
FR883940D Expired FR883940A (en) 1941-04-21 1942-07-07 Blackout device for anti-aircraft defense in industrial installations

Country Status (1)

Country Link
FR (1) FR883940A (en)

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