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AIRTIGHT SUCTION DEVICE AND AIR SUPPLY ASSEMBLY THEREOF
专利权人:
Hsuan-Chiao HO
发明人:
Hsuan-Chiao HO
申请号:
US13480325
公开号:
US20130312756A1
申请日:
2012.05.24
申请国别(地区):
US
年份:
2013
代理人:
摘要:
An air supply assembly of an airtight suction device includes: a tubular body, an oxygen supply manifold in communication with the tubular body a scraper fixed in the tubular body and an air supply unit provided in the tubular body and located between the oxygen supply manifold and the scraper. An airtight suction device can further includes a tubular body, an oxygen supply manifold, a first scraper, a second scraper, and an air supply unit.
来源网站:
中国工程科技知识中心
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