US Patent 7887099 Compound tube and method of producing the same
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Patent abstract
A compound tube is disclosed that includes an outer tube and an inner tube disposed in the outer tube. A passage is defined between the outer tube and the inner tube. Various methods of joining the outer tube to the inner tube are disclosed.
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Patent Inventor Names
Fumiaki Nakamura0
Hiroki Naganawa0
Hiroki Ohara0
Kinji Ochiai0
Shun Kurata0
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US Patent 07887099 Compound tube and method of producing the same US Patent 7887099 Compound tube and method of producing the same
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Patent Number
078870990
Patent Number
78870990
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Official Website
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Patent Jurisdiction
Patent Number
078870990
Date of Patent
February 15, 2011
0Patent Application Number
116340240
Date Filed
December 5, 2006
0Official Website
Patent Primary Examiner
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US Patent 07887099 Compound tube and method of producing the same
Infobox
Is a
Patent jurisdiction
Patent number
07887099
Date of patent
February 15, 2011
Patent application number
11634024
Date Filed
December 5, 2006
Patent primary examiner
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