DS

Daniel S. Spechler

KE Keuffel & Esser: 2 patents #4 of 17Top 25%
Overall (All Time): #2,361,602 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4376158 Color-proofing method 1983-03-08
4376159 Method of preparing matte finish color-proofing surprints 1983-03-08