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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Main Authors | , , |
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Format | Patent |
Language | English Korean |
Published |
24.12.1991
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Edition | 5 |
Subjects | |
Online Access | Get full text |
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