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Knee prosthesis
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Patent number 6,206,933
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Issue date Mar 27, 2001
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Chas. A. Blatchford & Sons Limited
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John Jeffrey Shorter
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Lowelimb prothesis
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Patent number 5,116,383
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Issue date May 26, 1992
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Chas. A. Blatchford & Sons Ltd.
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John J. Shorter
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Artificial ankle joint
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Patent number 4,645,508
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Issue date Feb 24, 1987
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Chas. A. Blatchford & Sons Limited
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John J. Shorter
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Endo-skeletal artificial limb
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Patent number 4,463,459
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Issue date Aug 7, 1984
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Chas. A. Blatchford & Sons Limited
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John J. Shorter
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Artificial leg
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Patent number 4,461,045
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Issue date Jul 24, 1984
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Chas. A. Blatchford & Sons Ltd.
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John J. Shorter
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE