№ EP4675131A1发明专利
审中OIL SUPPLY DEVICE FOR MARINE CONTRA-ROTATING PROPELLER DEVICE, AND MARINE CONTRA-ROTATING PROPELLER DEVICE
OIL SUPPLY DEVICE FOR MARINE CONTRA-ROTATING PROPELLER DEVICE, AND MARINE CONTRA-ROTATING PROPELLER DEVICE
❖Nihon Shipyard Co., Ltd.; Imabari Shipbuilding Co., Ltd.; Japan Marine United CorporationSHIMIZU, MasahiroJan 6, 2026F16H, B63H, B63H +327