Engine-Muffler. (open access)

Engine-Muffler.

Patent for improvements to engine muffler, including noise reduction without accompanying "back-pressure".
Date: September 19, 1911
Creator: Smoot, Lonnie C.
System: The Portal to Texas History
Guano Distributor (open access)

Guano Distributor

Patent for the distribution of guano for fertilization over a given area of territory.
Date: July 19, 1912
Creator: H. D. Pate
System: The Portal to Texas History