Patents

一种双层虹吸结构真空抽吸式地漏

Release Time:2019-04-15 Hits:

Title:

一种双层虹吸结构真空抽吸式地漏

Institution:

材料科学与工程学院

Type of Patent:

Utility models

Application Number:

201220463202.6

Number of Inventors:

3

Service Invention or Not:

No

Application Date:

2012-09-12

Publication Date:

2013-03-13

Authorization Date:

2013-03-13

Release Time:

2019-04-15

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