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发明名称
Spring rigging for bolster type trucks
摘要
申请公布号
US2197720(A)
申请公布日期
1940.04.16
申请号
US19380222365
申请日期
1938.08.01
申请人
THE PENNSYLVANIA RAILROAD COMPANY
发明人
ELSEY WARREN R.
分类号
B61F3/08
主分类号
B61F3/08
代理机构
代理人
主权项
地址
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