Question

 What type of Vacuum cleaners were invented in 1868 by Ives McGaffey?

Answer Try the following web sites for your answers McGaffeypatents the vacuum cleaner, a "sweeping machine" in 1869. Starts American Carpet Cleaning Co. located in Boston mass Ives W. McGaffey, Chicago... Read More »
http://wiki.answers.com/Q/What_type_of_Vacuum_cleaners_were_invented_in_1868_by_Ives_Mc...

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What is the weighted means price of a retailer selling 50 vacuum cleaners at 90 and 35 vacuum cleaners at 140?

Answer "Eutectic" refers to a mixture or alloy that has the lowest possible melting / freezing point. In a true eutectic solution, all its consituents move from solid state to liquid and vice versa... Read More »
http://wiki.answers.com/Q/What_is_the_weighted_means_price_of_a_retailer_selling_50_vac...

Who invented vacuum cleaners?

Who invented the electric vacuum cleANERS?

Hiya,I'm not to sure but I have a feeling that the make was called hoover! I'm new to answering questions but :D
http://wiki.answers.com/Q/Who_invented_the_electric_vacuum_cleANERS

Who invented Dyson vacuum cleaners?


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