Lars G. Hellman

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113 27 Stockholm, SE

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Patents Grantslast 30 patents

Information Patent Grant
Cover belt for a duct
- Patent number 5,556,680
- Issue date Sep 17, 1996
- Ipalco B.V.
- Lars Hellman
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Multistage isothermal air dehumidification
- Patent number 5,024,062
- Issue date Jun 18, 1991
- Lars G. Hellman
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Process for the dehumidification of moist air or saturated water vapor
- Patent number 4,290,208
- Issue date Sep 22, 1981
- Lars G. Hellman
- F24 - HEATING RANGES VENTILATING