Japan, Aug. 6 -- 公益社団法人日本将棋連盟 holds the trademark for '棋聖戦.' Other related details are as follows:
Application Number: Reg.No.7067476
Class: 41
Status: LIVE-REGISTRATION-Published for Opposition
Filing Date: Sept. 30, 2019
Registration Date: July 24
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/c1801/TR/JP-2019-127587/40/en
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