GB1207911A
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Prefabricated electric resistance pipe heating system
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GB1222246A
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Electric resistance heating system for elongated pipes
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US3457540A
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Cable connector for induction heating systems
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US3407835A
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Insulated heating or cooling system for elongated pipes
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US3377464A
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Electric resistance heating and insulating system for elongated pipes
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US3377463A
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Prefabricated electric resistance pipe heating system
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US3335251A
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Induction heating system for elongated pipes
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US3335252A
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Induction heating system for elongated pipes
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US3274619A
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Emergency shower
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US3182170A
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Induction heating units
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CA788093A
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Induction heating system for elongated pipes
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CA816267A
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Prefabricated electric resistance pipe heating system
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CA788092A
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Induction heating system for elongated pipes
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CA816266A
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Electric resistance heating and insulating system for elongated pipes
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