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Powered surgical retractor
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Patent number 5,271,384
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Issue date Dec 21, 1993
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James A. McEwen
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Advanced surgical retractor
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Patent number 5,201,325
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Issue date Apr 13, 1993
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Andronic Devices Ltd.
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James A. McEwen
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Toroidal surgical shield
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Patent number 4,817,592
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Issue date Apr 4, 1989
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Andronic Devices, Ltd.
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Geoffrey F. Auchinleck
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patient limb positioning apparatus
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Patent number 4,807,618
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Issue date Feb 28, 1989
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Andronic Devices, Ltd.
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Geoffrey F. Auchinleck
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE