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发明名称
Rail flaw detector car
摘要
申请公布号
US2027814(A)
申请公布日期
1936.01.14
申请号
US19330696660
申请日期
1933.11.04
申请人
SPERRY PRODUCTS, INC.
发明人
LANTY LOREN J. DE
分类号
B61K9/10
主分类号
B61K9/10
代理机构
代理人
主权项
地址
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