RBC EKO ROBERT CALKA

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PILAWA, PL

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Patents Grantslast 30 patents

Information Patent Grant
Constructed wetland sewage treatment system
- Patent number 9,868,657
- Issue date Jan 16, 2018
- RBC EKO Robert Calka
- Robert Calka
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE