PL211319A1 - Urzadzenie tlumiace halas zwlaszcza duzych otworow wentylacyjnych - Google Patents

Urzadzenie tlumiace halas zwlaszcza duzych otworow wentylacyjnych

Info

Publication number
PL211319A1
PL211319A1 PL21131978A PL21131978A PL211319A1 PL 211319 A1 PL211319 A1 PL 211319A1 PL 21131978 A PL21131978 A PL 21131978A PL 21131978 A PL21131978 A PL 21131978A PL 211319 A1 PL211319 A1 PL 211319A1
Authority
PL
Poland
Prior art keywords
especially large
ventilation slots
noise device
large ventilation
noise
Prior art date
Application number
PL21131978A
Other languages
English (en)
Inventor
Tadeusz Wrona
Krystyna Budryk
Janina Grochowska
Jerzy Wojcikowski
Original Assignee
Hutmaszprojekt
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 Hutmaszprojekt filed Critical Hutmaszprojekt
Priority to PL21131978A priority Critical patent/PL211319A1/pl
Publication of PL211319A1 publication Critical patent/PL211319A1/pl

Links

PL21131978A 1978-11-29 1978-11-29 Urzadzenie tlumiace halas zwlaszcza duzych otworow wentylacyjnych PL211319A1 (pl)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL21131978A PL211319A1 (pl) 1978-11-29 1978-11-29 Urzadzenie tlumiace halas zwlaszcza duzych otworow wentylacyjnych

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL21131978A PL211319A1 (pl) 1978-11-29 1978-11-29 Urzadzenie tlumiace halas zwlaszcza duzych otworow wentylacyjnych

Publications (1)

Publication Number Publication Date
PL211319A1 true PL211319A1 (pl) 1979-10-22

Family

ID=19992859

Family Applications (1)

Application Number Title Priority Date Filing Date
PL21131978A PL211319A1 (pl) 1978-11-29 1978-11-29 Urzadzenie tlumiace halas zwlaszcza duzych otworow wentylacyjnych

Country Status (1)

Country Link
PL (1) PL211319A1 (pl)

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