A vacuum terrestrial heat-extracting device and an air-conditioning system with the device
A Standard patent application filed on 13 November 2002 credited to Xu, Shengheng
Details
Application number :
2002349423
Application type :
Standard
Application status :
LAPSED
Under opposition :
No
Proceeding type :
Invention title :
A vacuum terrestrial heat-extracting device and an air-conditioning system with the device
Inventor :
Xu, Shengheng
Agent name :
Address for service :
Filing date :
13 November 2002
Associated companies :
Applicant name :
XU, Shengheng
Applicant address :
Beijing Ever Source Science AND Technology Development Co., Ltd., No. 36 Xingshikou Road, Haidian District, Beijing 100089