Shanghai Dobe Innovation Technology Development Co., Ltd.

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Quantité totale PI 1
Rang # Quantité totale PI 1 252 720
Note d'activité PI 0/5.0    0
Rang # Activité PI 1 653 802

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Dernier brevet 2021 - Two-dimensional barcode encrypti...
Premier brevet 2018 - Two-dimensional barcode encrypti...

Derniers inventions, produits et services

2018 Invention Two-dimensional barcode encryption method, two-dimensional barcode transmission system and storag...
Invention Two-dimensional code encryption method, two-dimensional code transmission system and storage medi...