US Patent 7758534 Tear-duct drain
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Patent abstract
A tear-duct drain includes a hollow rigid tube which is elongated and has a first flange at one extremity thereof. A flexible, resilient and collapsible second flange is bonded to the tube at a predetermined distance away from, and so providing a leading edge at, the opposite extremity of the tube.
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US Patent 07758534 Tear-duct drain US Patent 7758534 Tear-duct drain
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Patent Number
0775853400
Patent Number
775853400
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Patent Jurisdiction
Patent Number
077585340
Date of Patent
July 20, 2010
0Patent Application Number
116953000
Date Filed
April 2, 2007
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
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Infobox
Is a
Patent Jurisdiction
Patent Number
077585340
Date of Patent
July 20, 2010
0Patent Application Number
116953000
Date Filed
April 2, 2007
0Official Website
Patent Primary Examiner
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US Patent 07758534 Tear-duct drain
Infobox
Is a
Patent jurisdiction
Patent number
07758534
Date of patent
July 20, 2010
Patent application number
11695300
Date Filed
April 2, 2007
Patent primary examiner
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