申请人 |
HITACHI CONSTRUCTION MACHINERY CO., LTD., TOKIO/TOKYO, JP |
发明人 |
ICHIRYU, KEN, NIIHARI-GUN IBARAGI-KEN, JP;KANAI, TAKASHI, KASHIWA-SHI CHIBA-KEN, JP;OCHIAI, MASAMI, NIIHARI-GUN IBARAGI-KEN, JP;NOZAWA, YUUSAKU, HIGASHIIBARAGI-GUN IBARAGI-KEN, JP;KATO, HIDEYO, NIIHARI-GUN IBARAGI-KEN, JP |