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Fitting for corrugated conduit
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Patent number 8,056,938
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Issue date Nov 15, 2011
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Royal Group Inc.
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James Shen
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Conduit fitting ring
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Patent number D635934
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Issue date Apr 12, 2011
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Royal Group Inc.
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Xing-Guo Shen
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D13 - Equipment for production, distribution, or transformation of energy
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Conduit fitting ring
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Patent number D634712
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Issue date Mar 22, 2011
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Royal Group Inc.
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Xing-Guo Shen
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D13 - Equipment for production, distribution, or transformation of energy
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Conduit fitting ring
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Patent number D633872
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Issue date Mar 8, 2011
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Royal Group Inc.
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Xing-Guo Shen
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D13 - Equipment for production, distribution, or transformation of energy