EM

Earl R. Markham

📍 Amherstburg, CA: #42 of 78 inventorsTop 55%
Overall (All Time): #3,835,089 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5252116 Organic base fertilizer from municipal sewage sludge John T. Markham, Edward G. Markham 1993-10-12