Assignee
VERDAL MASKINVERK
FI·2 granted patents·10 citations·filing 1982–1985
Top patents by PatentIndex Score
2 records- 0130US4493366AMeans for recovering heat from a room space, and for ventilationVERDAL MASKINVERK·Filed 1982·Granted Jan 15, 1985·7 cites·2 claims
- 0225US4665805AApparatus for counterflow air to air generative heat exchange and ventilating a room spaceVERDAL MASKINVERK·Filed 1985·Granted May 19, 1987·3 cites·2 claims
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