申请人 |
HITACHI CONSTRUCTION MACHINERY CO., LTD., TOKIO/TOKYO, JP |
发明人 |
HIRATA, TOICHI, USHIKU-SHI IBARAGI-KEN, JP;HAGA, MASAKAZU, CHIYODA-MURA NIIHARI-GUN IBARAGI-KEN, JP;HIRAMI, ICHIRO, CHIYODA-MURA NIIHARI-GUN IBARAGI-KEN, JP;YOSHIDA, KUNIAKI, TSUCHIURA-SHI IBARAGI-KEN, JP |