AP

Alden H. Packard

PE Perfectdata: 1 patents #3 of 6Top 50%
Overall (All Time): #4,010,175 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4499516 Cleaning disk with opaque ring Richard T. Purdy 1985-02-12