申请人 |
HITACHI CONSTRUCTION MACHINERY CO., LTD., TOKIO/TOKYO, JP |
发明人 |
TATSUMI, AKIRA, KASHIWA, CHIBA 277, JP;HIRATA, TOICHI, IBARAGI 300-12, JP;EGASHIRA, MASAKI, NIIHARI, IBARAGI 315, JP;TOMIKAWA, OSAMU, TSUCHIURA, IBARAGI 300, JP;WATANABE, HIROSHI, IBARAGI 300-12, JP |