Mouth piece air collection bag for adults

The utility model relates to the technical field of gas collection bags, and discloses a mouthpiece gas collection bag for adults, which comprises a three-way mouthpiece, and the three-way mouthpiece is provided with a gas inlet, a gas collection bag connector and a waste gas bag connector; a connec...

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Bibliographische Detailangaben
1. Verfasser: LU KAILUN
Format: Patent
Sprache:chi ; eng
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