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Piston Rod Packing
Patent for piston rod packing. Illustration included.
Date:
September 21, 1909
Creator:
Rhodes, Hampton P.
System:
The Portal to Texas History
Gage for Deep-Sea Soundings
Patent for a liquid recorder for deep sea sounds. Illustrations included.
Date:
September 21, 1909
Creator:
Mel, John & Jones, Levin Thomas, Jr.
System:
The Portal to Texas History