国家/地区
IPC部
IPC大类
IPC小类
IPC
发明人 KIM S（2）
公开年
申请年 2020（2）
专利权人 KIM S（2）

Catalyst material for proton exchange membrane fuel cell, comprises metal alloy which is ternary alloy.

KIM S, HANAUER M, BERNER U, SAUTER U, CRAIG N, JOHNSTON C, TUFFILE C

Concrete structure wall and floor repair method comprises cleaning and drying cracks and damaged areas generated on wall or floor of concrete structure, and applying repair material to cracks and breaks of the concrete structure.

KIM S, KIM G