Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 6, 2018
Patent Application Number
12531301
Date Filed
February 26, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention relates to optical instruments, in particular to magnification loupes, stereo-magnification loupes and magnification viewers, such as those worn by dentists and surgeons. The objective lens of the optical instrument is protected from mechanical and/or chemical damage.
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