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PCE
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CPC Subgroup
F24S 10/80

comprising porous material or permeable masses directly contacting the working fluids (for conveying liquefied working fluid from evaporator sections to condenser sections with capillary force F24S10/95)

Full Title

Solar heat collectors using working fluids > comprising porous material or permeable masses directly contacting the working fluids (for conveying liquefied working fluid from evaporator sections to condenser sections with capillary force F24S10/95)