PL285378A1 - Method of making individual ducts, in particular ventilating and flue ones, in high buildings as well as precast units therefor
- Google Patents
Method of making individual ducts, in particular ventilating and flue ones, in high buildings as well as precast units therefor
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 Dombud Przed BudowlanefiledCriticalDombud Przed Budowlane
Priority to PL28537890ApriorityCriticalpatent/PL285378A1/en
Publication of PL285378A1publicationCriticalpatent/PL285378A1/en
PL28537890A1990-05-291990-05-29Method of making individual ducts, in particular ventilating and flue ones, in high buildings as well as precast units therefor
PL285378A1
(en)