Water heaters containing water under atmospheric pressure (Amendment 1)
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Water heaters containing water under atmospheric pressure (Amendment 2)
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Water heaters containing water under atmospheric pressure (Amendment 3)
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Water heaters containing water under atmospheric pressure
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Metallic flexible hoses for gas (Amendment 1)
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Metallic flexible hoses for gas (Amendment 2)
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Rubber tubes and polyvinyl chloride hoses with both end convenient joints for gas (Amendment 1)
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