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Toy water gun
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Patent number D410048
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Issue date May 18, 1999
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Heep Tung Manufactory Limited
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Ka-Shiu Luk
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D21 - Games, toys, and sports goods
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Toy gun
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Patent number D389884
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Issue date Jan 27, 1998
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Heep Tung Manufactory Limited
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Ka-Shiu Luk
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D21 - Games, toys, and sports goods
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Water-ejection toy
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Patent number 5,605,253
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Issue date Feb 25, 1997
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Heep Tung Manufactory Limited
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Ka-Shiu Luk
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F41 - WEAPONS
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Water pistol
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Patent number 4,492,318
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Issue date Jan 8, 1985
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Heep Tung Manufactory Limited
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Ka-Shiu Luk
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F41 - WEAPONS