Beijing Qinying Edu. Technologies Co., Ltd

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Rang # Quantité totale PI 740 967
Note d'activité PI 0,9/5.0    2
Rang # Activité PI 477 125

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Dernier brevet 2022 - Double-stepping linkage pedal fo...
Premier brevet 2021 - Horizontal pedal for bass drum o...

Derniers inventions, produits et services

2021 Invention Double-stepping linkage pedal for bass drum of jazz drum. A double-stepping linkage pedal for a b...
Invention Horizontal pedal for bass drum of drum set. A horizontal pedal for a bass drum of a drum set, com...