Walter J. Marciniak

📍 Crystal, MN: #143 of 227 inventorsTop 65%

🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%

Overall (All Time): #4,022,255 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4544023	Air heating and cooling apparatus	—	1985-10-01