VACUUM CLEANSING APPARATUS

An improvement in the dry vacuum cleaning of soft and hard surfaces in which vacuum only is applied to such surface, is characterised in that dry soil flowing away from such surface under the influence of vacuum is sprayed with liquid and deposited in a wetted condition in a liquid and soil-collecti...

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Bibliographic Details
Main Authors FORWARD RAYMOND H, ALI SAJJADALI G, ASHBY DEREK
Format Patent
LanguageEnglish
Korean
Published 24.12.1991
Edition5
Subjects
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