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Anna Baldwin invented and patented the milking machine in 1879
Her design used a "vacuum" connected to a hand pump!
She was the first one to come up with the "Suction" Method :)
Though her invention wasn't very successful, it DID inspire these...
http://library.thinkquest.org/C004160/Inventions_M-P/Milking_Machine/milking_machine.html
http://www.americanartifacts.com/smma/milker/milker.htm
http://inventors.about.com/library/graphics/curie.jpg&imgrefurl=http://inventors.about.com