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Seating system
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Patent number 5,102,195
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Issue date Apr 7, 1992
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Pin Dot Products
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Peter Axelson
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Locking mechanism
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Patent number 5,074,507
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Issue date Dec 24, 1991
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Pin Dot Products
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Peter Axelson
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Quick release coupler
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Patent number 5,052,647
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Issue date Oct 1, 1991
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Pin Dot Products
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Peter Axelson
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Seating system
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Patent number 5,035,467
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Issue date Jul 30, 1991
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Pin Dot Products
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Peter Axelson
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Mechanical shape sensor
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Patent number 4,998,354
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Issue date Mar 12, 1991
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Pin Dot Products
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Michael W. Silverman
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G01 - MEASURING TESTING