RH

Ralph H. Holl

CR Consolidated Rail: 2 patents #2 of 21Top 10%
📍 Hollidaysburg, PA: #33 of 94 inventorsTop 40%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #2,327,192 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4974797 Hot bearing simulator Larry F. Myers, Douglas B. Tharp 1990-12-04
4878437 Hot bearing simulator Larry F. Myers, Douglas B. Tharp 1989-11-07