De La Vergne Refrigerating Machine Co · New York : [The Company] · leaf 91
d into the expansion-coils.Since this regulation has to be of the very nicest kind,we have constructed the passage through the plug inthe following manner: The round opening does not en-tirely pass through, and the thin remaining bridge ofmetal is perforated in the shape of a very narrow wedge,the… … Stop-Cock.
Refrigeration and refrigerating machinery
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