NO123421B - - Google Patents

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Info

Publication number
NO123421B
NO123421B NO4447/68A NO444768A NO123421B NO 123421 B NO123421 B NO 123421B NO 4447/68 A NO4447/68 A NO 4447/68A NO 444768 A NO444768 A NO 444768A NO 123421 B NO123421 B NO 123421B
Authority
NO
Norway
Prior art keywords
edge
membrane
valve
mouth
whose
Prior art date
Application number
NO4447/68A
Other languages
English (en)
Norwegian (no)
Inventor
A Faeldt
Original Assignee
Bpa Byggproduktion Ab
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 Bpa Byggproduktion Ab filed Critical Bpa Byggproduktion Ab
Publication of NO123421B publication Critical patent/NO123421B/no

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/08—Ventilation of sewers

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
NO4447/68A 1967-11-10 1968-11-08 NO123421B (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE15450/67A SE325237B (xx) 1967-11-10 1967-11-10

Publications (1)

Publication Number Publication Date
NO123421B true NO123421B (xx) 1971-11-08

Family

ID=20300663

Family Applications (1)

Application Number Title Priority Date Filing Date
NO4447/68A NO123421B (xx) 1967-11-10 1968-11-08

Country Status (4)

Country Link
DK (1) DK121699B (xx)
FI (1) FI50005C (xx)
NO (1) NO123421B (xx)
SE (1) SE325237B (xx)

Also Published As

Publication number Publication date
DK121699B (da) 1971-11-15
FI50005B (xx) 1975-07-31
FI50005C (fi) 1975-11-10
SE325237B (xx) 1970-06-22

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