US Patent D610477 Digital protractor
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Patent Inventor Names
Changsong Jiang0
Guangjin Li0
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US Patent D0610477 Digital protractor US Patent D610477 Digital protractor
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Patent Number
D06104770
Patent Number
D6104770
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Golden AI
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Official Website
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Patent Jurisdiction
Patent Number
D06104770
Date of Patent
February 23, 2010
0Patent Application Number
293324060
Date Filed
February 13, 2009
0Official Website
Patent Primary Examiner
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US Patent D0610477 Digital protractor
Infobox
Is a
Patent jurisdiction
Patent number
D0610477
Date of patent
February 23, 2010
Patent application number
29332406
Date Filed
February 13, 2009
Patent primary examiner
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