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Conditioning hair relaxer system
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Patent number 5,376,364
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Issue date Dec 27, 1994
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Johnson Products Co., Inc.
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Adu G. Darkwa
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Hair relaxer cream
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Patent number 5,171,565
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Issue date Dec 15, 1992
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Johnson Products Co., Inc.
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Muhammad Akhtar
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Hair relaxer cream
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Patent number 5,068,101
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Issue date Nov 26, 1991
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Johnson Products Co., Inc.
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Muhammad Akhtar
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Hair relaxer cream
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Patent number 4,950,485
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Issue date Aug 21, 1990
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Johnson Products Co., Inc.
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Muhammad Akhtar
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE