WH

Walter G. Heidbrier

AM A. Y. Mcdonald Mfg.: 1 patents #12 of 17Top 75%
📍 Dubuque, IA: #358 of 571 inventorsTop 65%
🗺 Iowa: #8,735 of 15,303 inventorsTop 60%
Overall (All Time): #3,847,420 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5102098 Tamperproof rotary valve Joseph L. Daghe, John D. Eckel 1992-04-07