申请人 |
HITACHI CONSTRUCTION MACHINERY CO., LTD., TOKIO/TOKYO, JP |
发明人 |
SHIMOMURA, YOSHIAKI, IBARAKI, JP;MIYANAGI, NAOKI, IBARAKI, JP;TADA, NOBUHIKO, USHIKU, IBARAKI, JP;NAGANO, YOSHINARI, IBARAKI, JP;OKUMURA, SHINYA, TSUCHIURA, IBARAKI, JP;SAKURAI, SHIGEYUKI, TSUKUBA, IBARAKI, JP |