US Patent D919693 Portable projection screen
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Patent Inventor Names
Cheng Yang0
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US Patent D0919693 Portable projection screen US Patent D919693 Portable projection screen
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Patent Number
D09196930
Patent Number
D9196930
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Patent Number
D09196930
Date of Patent
May 18, 2021
0Patent Application Number
296826550
Date Filed
March 7, 2019
0Official Website
Patent Primary Examiner
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US Patent D0919693 Portable projection screen
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Is a
Patent jurisdiction
Patent number
D0919693
Date of patent
May 18, 2021
Patent application number
29682655
Date Filed
March 7, 2019
Patent primary examiner
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