Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Naoyuki Oba0
Akihiro Yamamoto0
Hiroki Iwata0
Katsumi Ogawa0
Date of Patent
May 3, 2022
0Patent Application Number
165099250
Date Filed
July 12, 2019
0Patent Citations Received
Patent Primary Examiner
The present invention provides a checking tool for a tube coupler with which it is possible to visually check an attachment state of the tube coupler. A checking tool
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