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)

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