一种防治产生扬尘的清洁施工罩

Release time:2019-04-15|Hits:

Affilication of Author(s):土建与水利学院

Patent Applicant:ZHANG Jiong

Type of Patent:发明

Application Number:201822045765.3

Number of Inventors:1

Service Invention or Not:no

Application Date:2018-12-06