AT

Andrew L. Trumbo

CH Childers: 2 patents #2 of 5Top 40%
📍 Beaverton, OR: #1,624 of 3,140 inventorsTop 55%
🗺 Oregon: #12,654 of 28,073 inventorsTop 50%
Overall (All Time): #2,346,067 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4564037 Coin-queueing head for high-speed coin-sorting and counting apparatus Roger K. Childers 1986-01-14
4557282 Coin-sorting wheel and counter for high-speed coin-sorting and counting apparatus Roger K. Childers, Kenneth Buchanan 1985-12-10