Thomas Alva Edison was one of the most prolific inventors, with 1093 awarded patents and another 500 abandoned applications. What percentage of his inventions were abandoned?Send answers to kellys3ps@sbcglobal.net
Good Luck!
Kelly
Thomas Alva Edison was one of the most prolific inventors, with 1093 awarded patents and another 500 abandoned applications. What percentage of his inventions were abandoned?
No comments:
Post a Comment