FP

Frank K. Pearson

ND National Research Development: 1 patents #307 of 1,071Top 30%
Overall (All Time): #4,084,167 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4251846 Apparatus for sensing short circuit faults in alternating current supply lines Harold Lord 1981-02-17