Michael R. Spearman

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St. Paul, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
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- Patent number D373637
- Issue date Sep 10, 1996
- Porous Media Corporation
- Michael R. Spearman
- D24 - Medical and laboratory equipment
Information Patent Grant
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- Patent number D357737
- Issue date Apr 25, 1995
- Porous Media Corporation
- Michael R. Spearman
- D24 - Medical and laboratory equipment