Patent Assignment
Reel/Frame 030677/0740
Assignment of Assignor's Interest
Recorded: 2013-06-25
Pages: 4
Assignors
WANG, GENGLIN
Executed: 2013-06-18
LI, FEI
Executed: 2013-06-18
WANG, CAIYI
Executed: 2013-06-18
LI, NINGBO
Executed: 2013-06-18
WANG, LIYAN
Executed: 2013-06-18
DONG, LIJUN
Executed: 2013-06-18
LIU, YONGMIN
Executed: 2013-06-18
Assignee
BEIJING KEYTONE ELECTRONIC RELAY CORPORATION LTD.
NO. 31, BAIZHIFANG EAST STREET, XICHENG DISTRICT, BEIJING, 100054, CHINA
Covered Property
(1)
Method for Helium Mass Spectrometric Fine-Leak Test Based on Quantitative Determination of Maximum Test-Waiting Time