US Patent 7640671 Measuring compass
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Patent abstract
A measuring compass is disclosed. The compass comprises a marking leg, a pegging leg which symmetrically form into a shape of a pencil. The upper end of the pegging leg and the marking leg is a center plate or gear module, and the bottom end is a protective cover for protecting the marking leg and the pegging leg. When the compass is not in use, the marking leg and the pegging leg are closed to each other and the protective cover caps the legs. The compass can be inserted to a pocket.
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Patent Inventor Names
Yu-Ming Tu0
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US Patent 07640671 Measuring compass US Patent 7640671 Measuring compass
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Patent Number
07640671
Patent Number
7640671
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US Patent 07640671 Measuring compass
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Is a
Patent jurisdiction
Patent number
07640671
Date of patent
January 5, 2010
Patent application number
12167262
Date Filed
July 3, 2008
Patent primary examiner
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