1 Matching Results
Results open in a new window/tab.
Results:
1 - 1 of
1
Heat-Producing Process.
Patent for Improvements in Heat-Producing Processes by way of "process of producing heat and conserving heat..." for use in various types of furnaces (lines 9-10).
Date:
October 15, 1918
Creator:
Bone, David R.
System:
The Portal to Texas History