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Doodle today: Google celebrates "puncher" patent submission 131st anniversary

via:CnBeta     time:2017/11/14 15:08:03     readed:39

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In November 14, 1886, Soennecken filed a patent application, and introduces the ring binder. Today is the day when the patent was submitted to 131st anniversary, and Google also released the moving map on Tuesday.

Compiler:Cnet]

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