Lawrence G. Caldwell

📍 Devon, PA: #62 of 139 inventorsTop 45%

🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%

Overall (All Time): #2,320,236 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5069583	Device for changing flow paths in a pneumatic conveying system	—	1991-12-03
4436459	Pneumatic stream divider	—	1984-03-13