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Air support device
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Patent number 5,373,595
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Issue date Dec 20, 1994
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Irvin Industries Canada Ltd.
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Peter D. Johnson
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Distribution valve
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Patent number 5,343,893
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Issue date Sep 6, 1994
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Irvin Industries Canada Ltd.
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James V. Hogan
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Drone landing bag
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Patent number 4,205,811
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Issue date Jun 3, 1980
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Irvin Industries Canada Ltd.
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Lorenz A. Palm
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Belt-type restraint device
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Patent number 4,172,453
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Issue date Oct 30, 1979
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Irvin Industries Canada Ltd.
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George B. Leckie
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Parachute canopy
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Patent number 4,117,993
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Issue date Oct 3, 1978
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Irvin Industries Canada Ltd.
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Lorenz A. Palm
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B64 - AIRCRAFT AVIATION COSMONAUTICS