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发明名称
Railway truck
摘要
申请公布号
US1808289(A)
申请公布日期
1931.06.02
申请号
US19250022597
申请日期
1925.04.13
申请人
THE BETTENDORF COMPANY
发明人
CLASEN CLAUS J. W.
分类号
B61F5/12
主分类号
B61F5/12
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代理人
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