Resource Type
Counties
Day
1 Matching Results
Results open in a new window/tab.
Results:
1 - 1 of
1
Device For Cleaning Electrodes Of Make-And-Break Spark-Plugs.
Patent for improvements in cleaning the electrodes of make and break spark plugs, with an illustration and explanation.
Date:
August 6, 1918
Creator:
Irwin, H. G.
System:
The Portal to Texas History