Water surface spilled oil clearing method and spilled oil clearing ship

DENG JIXIANG / YING QIANSHAN / TAN JIANQUN et al. | European Patent Office | 2021

DEVICE FOR CLEARING OBJECT FLOATING ON WATER AND CLEARING METHOD THEREFOR

LI WEIWEI / CHEN LEI | European Patent Office | 2022

Water gate sludge clearing equipment

QI FEI / XU LONGLEI / YANG YINGHUA et al. | European Patent Office | 2021

Water garbage salvage clearing device

WANG QIYONG / NIE AIGUO / LI HAO et al. | European Patent Office | 2020

Highway accumulated water clearing device

LIU ZONGQI | European Patent Office | 2020