Multifunctional cleaning and air-expelling device and manufacturing method thereof
The embodiment of the invention discloses a multifunctional cleaning and air-expelling device and a manufacturing method thereof. The air-expelling device comprises an air-expelling strip, a cleaningcylinder and a handle, the cross section of the air-expelling strip is rectangular or runway-shaped o...
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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
19.11.2019
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Subjects | |
Online Access | Get full text |
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