Mark D. Penner
@cdnpatentlawyer
Patent & TM lawyer with Fasken; Securing, Protecting & Enforcing Intellectual Property. Tweets = personal opinion; not advice. Also @CdnTrademarkLaw
ID: 210579658
http://www.cdnpatentlawyer.com 31-10-2010 19:44:31
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On this date in #innovation history: Thomas Edison receives a #patent in 1881 for a follow-on #invention in improving on his first practical electric lightbulb (invented in 1879 & patented in 1880) #PatentsMatter #tech Edison Nation General Electric