John Allan Grinstead — 1 Patent

John Allan Grinstead has been granted 1 US patent. All of these patents were granted in 2004. John Allan Grinstead ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list John Allan Grinstead in Sanibel, FL, US.

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D491830	Geographic bracelet	—	2004-06-22

John Allan Grinstead — 1 Patent

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