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发明名称
Friction draft gear
摘要
申请公布号
US1831890(A)
申请公布日期
1931.11.17
申请号
US19280315398
申请日期
1928.10.27
申请人
CARDWELL WESTINGHOUSE COMPANY
发明人
STEVENS ROY R.
分类号
B61G9/10
主分类号
B61G9/10
代理机构
代理人
主权项
地址
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