RS

Richard F. Spahr

SA Selas Corporation Of America: 2 patents #10 of 30Top 35%
📍 Ambler, PA: #164 of 341 inventorsTop 50%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,358,142 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4487573 Burner Chad F. Gottschlich, Leland H. S. Roblee, Jr., Howard H. Seemann, William G. Bates 1984-12-11
4449918 Apparatus for regulating furnace combustion 1984-05-22