What is hidden in 3D image?
Brain Teasers
[2547] What is hidden in 3D image? - Stereogram - 3D Image - #brainteasers #stereogram #3Dimage
2016-08-02
Black American patentIn 1897, black American inventor P. Walker was issued a U.S. patent for his invention of a "Machine for Seeding Cotton" (No. 577,153). The following year, on 8 Mar 1898, he received another patent for his invention of a "Bait Holder" (No. 600,241) |
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