Renovation drain system for repairing concrete drain
(11) EP 3 693 647 A1
(22) 23.09.2019
(43) 12.08.2020 Bulletin 2020/33
(57) Renovation drains and liner members are used for repairing sewer drains, storm drains, and other drains made of concrete. The invention concerns a renovation drain system comprising a liner member (100) for repairing a concrete drain. The liner member (100) includes liner (101) to be prepared with impregnating compound, a first branch ...
(71) Hämäläinen, Sami 00930 Helsinki (FI)