一种牛棚换气装置
Date:2023-09-13 clicks:
Affilication of Author(s):扬州大学
School Sign:扬州大学
Patent description:一种牛棚换气装置
Type of Patent:Invent
Authorization number:ZL202210774083.4
Number of Inventors:3
Service Invention or Not:no
Authorization Date:2023-07-07