Haisong Dong

Chine

 
Quantité totale PI 6
Rang # Quantité totale PI 260 039
Note d'activité PI 1,4/5.0    5
Rang # Activité PI 197 966

Brevets

Marques

6 0
0 0
0 0
0
 
Dernier brevet 2022 - Illumination devices
Premier brevet 2017 - Illumination devices

Derniers inventions, produits et services

2022 Invention Illumination devices. An illumination device (e.g., an electric candle, etc.) generally includes ...
2020 Invention Flickering flame-shaped head apparatus. Disclosed is a swinging flame head device, comprising a f...