US Patent D998758 Sealing disc for sealing vacuum valve
Is a
Date Filed
December 28, 2020
Date of Patent
September 12, 2023
Patent Application Number
29763967
Patent Citations Received
Patent Inventor Names
Ming-Sheng Tsai
Chun-Shu Hsu
Xiao Hu
Chwung-Shan Kou
Ye-Liang Zhao
Shao-Hui Zhang
Wen-Wei Gu
Szu-Min Lin
Chih-Hung Wang
Yen-Sheng Wang
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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