NO160542C - SOUND MUTED DEVICE, PRIOR TO AIR DEVICE. - Google Patents
SOUND MUTED DEVICE, PRIOR TO AIR DEVICE.Info
- Publication number
- NO160542C NO160542C NO831294A NO831294A NO160542C NO 160542 C NO160542 C NO 160542C NO 831294 A NO831294 A NO 831294A NO 831294 A NO831294 A NO 831294A NO 160542 C NO160542 C NO 160542C
- Authority
- NO
- Norway
- Prior art keywords
- prior
- air
- sound muted
- sound
- muted
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Exhaust Silencers (AREA)
- Duct Arrangements (AREA)
- Compressor (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8202291A SE451627B (en) | 1982-04-13 | 1982-04-13 | Sound-damping ventilator |
Publications (3)
Publication Number | Publication Date |
---|---|
NO831294L NO831294L (en) | 1983-10-14 |
NO160542B NO160542B (en) | 1989-01-16 |
NO160542C true NO160542C (en) | 1989-04-26 |
Family
ID=20346514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO831294A NO160542C (en) | 1982-04-13 | 1983-04-12 | SOUND MUTED DEVICE, PRIOR TO AIR DEVICE. |
Country Status (3)
Country | Link |
---|---|
FI (1) | FI77101C (en) |
NO (1) | NO160542C (en) |
SE (1) | SE451627B (en) |
-
1982
- 1982-04-13 SE SE8202291A patent/SE451627B/en not_active IP Right Cessation
-
1983
- 1983-03-30 FI FI831094A patent/FI77101C/en not_active IP Right Cessation
- 1983-04-12 NO NO831294A patent/NO160542C/en unknown
Also Published As
Publication number | Publication date |
---|---|
FI77101C (en) | 1989-01-10 |
SE451627B (en) | 1987-10-19 |
FI831094A0 (en) | 1983-03-30 |
NO160542B (en) | 1989-01-16 |
FI77101B (en) | 1988-09-30 |
SE8202291L (en) | 1983-10-14 |
NO831294L (en) | 1983-10-14 |
FI831094L (en) | 1983-10-14 |
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