I don't know what the Chinese name of the porta-bote company you mentioned is. If you know, you can click the link below and enter the Chinese name of the corresponding company in the column of applicant (patent right). According to your relevant information, you can also click the link below and enter "folding boat" or "folding boat" in the abstract column (note that spaces should be added before and after, and click search to query related patents. thank you
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Folding boat: /Home/Result? search word = ZY % 3A(% E6 % 8A % 98% E5 % 8F % A0 % E8 % 88% B9)% 20
Fold and boat:/home/result? Search word = zy% 3a (%E6% 8a% 98% E5% 8f% A0% 20 and %20%E8%88%B9)%20