David Derek Grant Spratley

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Richmond, GB

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Patents Grantslast 30 patents

Information Patent Grant
Air circulation and bed-cover suspension unit for a bed
- Patent number 8,074,307
- Issue date Dec 13, 2011
- David Derek Grant Spratley
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...