JD

Joe L. Daghe

AM A. Y. Mcdonald Mfg.: 2 patents #6 of 17Top 40%
📍 Dubuque, IA: #262 of 571 inventorsTop 50%
🗺 Iowa: #6,094 of 15,303 inventorsTop 40%
Overall (All Time): #2,313,681 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5076541 Tamperproof rotary valve John D. Eckel, Warren G. Heidbrier 1991-12-31
4984767 Tamperproof rotary valve John D. Eckel, Warren G. Heidbrier 1991-01-15