Please answer the following question: What type of details about james m. spangler can be gathered from the following bio? Bio: james murray spangler -lrb- november 20 , 1848 -- january 22 , 1915 -rrb- was an american inventor , salesman and janitor who invented the first commercially successful portable electric vacuum cleaner that revolutionized household carpet cleaning . his device was not the first vacuum cleaner . however , spangler 's device was the first that was practical for home use . it was the first to use both a cloth filter bag and cleaning attachments . spangler improved this basic model and received a patent for it in 1908 . he formed the electric suction sweeper company to manufacture his device . william h. hoover was so impressed with the vacuum cleaner that he bought into spangler 's business and patents .
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