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Electrical Battery
Patent for an electrical battery. Illustration included.
Date:
June 14, 1904
Creator:
Haschke, Juluis E. & Haschke, Feodor G.
System:
The Portal to Texas History
Boiler-Skimmer.
Patent for a boiler-skimmer that improves the hinge joint so that water or scum will have free access there and in all positions of the skimmer.
Date:
October 14, 1919
Creator:
Phillips, Eugene N. & Dick, Harvey H.
System:
The Portal to Texas History