|
83. (200420109992) Freely rotating mechanism of steel door.
Applicant: Yaolong Fire-Fighting Equipment Co Ltd| Shanghai
(More From this Applicant...)
Inventor: Chen Xinggeng|Wang Yaozhong|Qiao Fangmei|Qu Liping
(More From this Inventor...)
Application Date: 2004-12-10
Publication Date: 2006-02-01
|