CH446663A - Dispositif d'étranglement réglable d'une gaine de ventilation
- Google Patents
Dispositif d'étranglement réglable d'une gaine de ventilation
Info
Publication number
CH446663A
CH446663ACH1573765ACH1573765ACH446663ACH 446663 ACH446663 ACH 446663ACH 1573765 ACH1573765 ACH 1573765ACH 1573765 ACH1573765 ACH 1573765ACH 446663 ACH446663 ACH 446663A
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 Technicair SafiledCriticalTechnicair Sa
Priority to CH1573765ApriorityCriticalpatent/CH446663A/fr
Publication of CH446663ApublicationCriticalpatent/CH446663A/fr