US Patent 7782531 Portable projector screen assembly
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Patent abstract
A portable projector screen assembly includes a roller, two cylinders slidably connected to two ends of the roller respectively, a collapsible member connected to the roller, and a screen. The collapsible member includes a plurality of interconnected pieces. Two free ends of the collapsible member are fixed to free ends of the cylinders respectively. The screen includes a plurality of fixing portions, and the fixing portions are respectively connected to joints of each two pieces of the collapsible member.
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Patent Inventor Names
Qiang Zhu0
Xiao-Lin Gan0
Yu-Kuang Ho0
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Official Website
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US Patent 07782531 Portable projector screen assembly US Patent 7782531 Portable projector screen assembly
Infobox
Patent Number
077825310
Patent Number
77825310
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Patent Jurisdiction
Patent Number
077825310
Date of Patent
August 24, 2010
0Patent Application Number
119670810
Date Filed
December 29, 2007
0Official Website
Patent Primary Examiner
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US Patent 07782531 Portable projector screen assembly
Infobox
Is a
Patent jurisdiction
Patent number
07782531
Date of patent
August 24, 2010
Patent application number
11967081
Date Filed
December 29, 2007
Patent primary examiner
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