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发明名称
Crash marker
摘要
申请公布号
US2418549(A)
申请公布日期
1947.04.08
申请号
US19460669349
申请日期
1946.05.13
申请人
JACK BUDNICK
发明人
RUGERIS JOHN DE
分类号
B63B22/10
主分类号
B63B22/10
代理机构
代理人
主权项
地址
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