CA1194279A
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Process for making replacement muffler
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US4619292A
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Air gap pipe
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US4590652A
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Method for fabricating an air gap pipe
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US4558721A
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Double walled tubing
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US4545605A
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Welded tube and flange, e.g., for exhaust manifold
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US4516659A
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Replacement muffler and process for making same
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US4537027A
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Hybrid exhaust manifold
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US4501302A
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Air gap pipe
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US4478310A
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Universal heat shield
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CA1193838A
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Double walled tubing and process for producing same
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US4483061A
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Double walled tubing and process for producing same
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US4475623A
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Universal muffler assembly
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US4500030A
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Flange weld technique
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US4473131A
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Threaded muffler nipple and bushing
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US4486932A
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Process for making a replacement muffler
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US4530231A
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Method and apparatus for expanding tubular members
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