US Patent 7189133 Reversibly metachromatic toy
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Patent Inventor Names
Hiroki Harata0
Kuniyuki Senga0
Masanori Takeda0
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Patent abstract
A reversibly metachromatic toy having a platelike resin foamed substrate, a resin layer provided on both the outer side surfaces of the foamed substrate, and a reversibly metachromatic layer provided on at least one-side resin layer partly or all over the surface.
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US Patent 07189133 Reversibly metachromatic toy US Patent 7189133 Reversibly metachromatic toy
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Patent Number
071891330
Patent Number
71891330
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Patent Jurisdiction
Patent Number
071891330
Date of Patent
March 13, 2007
0Patent Application Number
107907730
Date Filed
March 3, 2004
0Official Website
Patent Primary Examiner
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US Patent 07189133 Reversibly metachromatic toy
Infobox
Is a
Patent jurisdiction
Patent number
07189133
Date of patent
March 13, 2007
Patent application number
10790773
Date Filed
March 3, 2004
Patent primary examiner
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