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Inventor
CHARBONNEAU GARY P
US
2 patents
Patents
2 patents
US7752708B2
Jul 13, 2010
Floor cleaning apparatus with filter cleaning system
PANASONIC CORP NORTH AMERICA
5 citations
70
US7373689B2
May 20, 2008
Floor care apparatus having visual dirt indicator with flexible membrane circuit
PANASONIC CORP NORTH AMERICA
7 citations
67