Counties
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Pipe-Making Machine.
Patent for pipe making machines in which "concrete, clay or shale is formed into pipe by a combined feeding and molding mechanism" (lines 17-19).
Date:
November 7, 1911
Creator:
Reese, Walter A.
System:
The Portal to Texas History
Detector for Wireless Signaling Apparatus.
Patent for wireless signaling apparatus which provides a detector which shall be universal in its application, by means of which any of the well known minerals or materials may be employed and removably held in proper position.
Date:
November 21, 1911
Creator:
Johnson, Maurice Bernays
System:
The Portal to Texas History