Photography from albums of Hjalmar Löfquist's patented electric steam and hot water boilers, for industries, power plants and housing. Steam boilers: 132 of 20 , 133 of 40 and 135 of 25
Size: 2645px × 1889px
Photo credit: © BTEU/TEKNISKA / Alamy / Afripics
License: Licensed
Model Released: No
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