MB

Marvin C. Burk

PP Phillips Petroleum: 1 patents #819 of 1,401Top 60%
Overall (All Time): #4,105,854 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4187540 Control panel self-test Thomas Davis 1980-02-05