Electric cleaner

A - Human Necessities – 47 – L

Patent

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183/99

A47L 9/12 (2006.01) A47L 9/10 (2006.01) A47L 9/20 (2006.01)

Patent

CA 1037390

ELECTRIC CLEANER ABSTRACT OF THE DISCLOSURE The disclosed filter sheet used in electric cleaners is prepared by forming a stock including essentially linter pulps mixed with chemical fibers such as rayon fibers and impregnated with phenol or melamine resin. Then the filter sheet is folded to give its cross section many continuous waves.

180321

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