US Patent 7263778 High contrast spirit-level vial
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Patent Inventor Names
Assif Stoffman0
Joel Lang0
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Article (+387 characters)
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Patent abstract
A spirit-level vial comprising a transparent vessel containing a globule of a first liquid suspended in a medium comprising a second liquid, wherein said transparent vessel is essentially completely filled by said medium, and wherein said globule is capable of moving freely through said medium in response to changes in the spatial orientation of said transparent vessel.
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US Patent 07263778 High contrast spirit-level vial US Patent 7263778 High contrast spirit-level vial
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Patent Number
07263778
Patent Number
7263778
Golden AI
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US Patent 07263778 High contrast spirit-level vial
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Is a
Patent jurisdiction
Patent number
07263778
Date of patent
September 4, 2007
Patent application number
10534496
Date Filed
October 6, 2003
Patent primary examiner
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