| http://www.w3.org/ns/prov#value | - Upper and lower plates 73 and 74, each also having a shape complimentary to the shape of the heat exchange mass 40, are disposed in contact with the upper and lower seals 71 and 72, respectively, and fixed thereto by suitable fastening means, such as nuts and bolts 75 which extend through apertures in each of the upper and lower plates 73 and 74, the upper and lower seals 71 and 72 and the heat ex
|
