Kalervo M/a/ nnist/o/

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Vantaa, FI

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Patents Grantslast 30 patents

Information Patent Grant
Pipe coupling with water seal between the sinks of a drain board an...
- Patent number 4,615,053
- Issue date Oct 7, 1986
- Oy All-Plast Ab
- Heikki Masalin
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Floor drain or some other cupped water seal
- Patent number 4,487,219
- Issue date Dec 11, 1984
- Oy All-Plast Ab
- Paavo M/a/ kel/a/
- E03 - WATER SUPPLY SEWERAGE