DM

Douglas B. Malchow

WM Warner Manufacturing: 2 patents #5 of 13Top 40%
Overall (All Time): #2,307,762 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5095573 Scraper tool David R. Henke 1992-03-17
4834237 Wallcovering kit apparatus and method David R. Henke 1989-05-30