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Sanitary Telephone-Mouthpiece.
Patent for new and necessary improvements in sanitary telephone mouthpieces, such as improving overall construction of the telephone mouthpiece so that the mouthpiece is more sanitary, compact, and practical. Illustration and instruction included.
Date:
March 28, 1916
Creator:
Jenkins, Ed Monroe
System:
The Portal to Texas History
Furnace
Patent for a furnace that burns low grade fuel completely reducing waste.
Date:
May 28, 1912
Creator:
Rice, Earley W.
System:
The Portal to Texas History