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Refrigerating Apparatus
Patent for a refrigerating apparatus for the purpose of regulating the liquid refrigerant agents in the expansion coils. Illustrations included.
Date:
December 15, 1908
Creator:
Mayhew, John Daugherty
System:
The Portal to Texas History
Cultivator
Patent for a cultivator. Illustration included.
Date:
January 15, 1907
Creator:
Nicholson, Matthew Harris & Rosenbaum, Eugene
System:
The Portal to Texas History