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David Derek Grant Spratley

📍 Richmond, GB: #63 of 192 inventorsTop 35%
Overall (All Time): #2,069,561 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8413458 Device for retaining beverage cooling means within a vessel — 2013-04-09
8074307 Air circulation and bed-cover suspension unit for a bed — 2011-12-13