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Patient/nurse call system
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Patent number 5,838,223
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Issue date Nov 17, 1998
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Hill-Rom, Inc.
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Dennis Gallant
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Manufacturing method and apparatus
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Patent number 5,838,236
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Issue date Nov 17, 1998
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Diversified Systems Incorporated
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Stanley L. Bentley
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G06 - COMPUTING CALCULATING COUNTING
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Patient/nurse call system
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Patent number 5,561,412
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Issue date Oct 1, 1996
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Hill-Rom, Inc.
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Joseph H. Novak
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE