DL

David H. Lawhead

SI Secretary Of The Interior: 1 patents #2 of 21Top 10%
📍 Ross Township, PA: #18 of 25 inventorsTop 75%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,040,281 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4468973 Remote sequential gas sampler for blasting areas Anthony T. Iannacchione, John H. Perry 1984-09-04