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发明名称
RAILROAD CAR RETARDERS
摘要
申请公布号
ZA7102535(B)
申请公布日期
1972.09.27
申请号
ZA19710002535
申请日期
1971.04.20
申请人
ABEX CORP
发明人
FRANK E
分类号
B61K7/04
主分类号
B61K7/04
代理机构
代理人
主权项
地址
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