A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The present invention is provided for by using a full current solution, by utilizing a generally gas free column of sewer pipes, which again is provided by using valves to keep the sewer pipes filled with liquid.
The present invention is provided for by using a full current solution, by utilizing a generally gas free column of sewer pipes, which again is provided by using valves to keep the sewer pipes filled with liquid.
SEWER SYSTEM
JOHNSEN ASLE (author)
2016-12-01
Patent
Electronic Resource
English
Engineering Index Backfile | 1964