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经营范围
发明名称
Scotch block apparatus
摘要
申请公布号
US2496916(A)
申请公布日期
1950.02.07
申请号
US19470721937
申请日期
1947.01.14
申请人
THE WESTINGHOUSE AIR BRAKE COMPANY
发明人
KERSHAW NORMAN G.
分类号
B61K7/20
主分类号
B61K7/20
代理机构
代理人
主权项
地址
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