Find the right combination
Find the right combinationCorrect answers: 75
The first user who solved this task is James Lillard.
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Edison patentIn 1909, a U.S. patent for "Waterproofing Paint for Portland Cement Buildings" was issued to Thomas A. Edison (No. 909,167) and another for "Waterproofing Paint for Portland Cement Structure" (No. 909,169). He also received a patent for "Waterproofing Fibers and Fabrics" (No. 909,806). |