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发明名称
Bulldozer
摘要
申请公布号
US2485407(A)
申请公布日期
1949.10.18
申请号
US19470740048
申请日期
1947.04.08
申请人
PETERSON ROBERT A
发明人
PETERSON ROBERT A.
分类号
主分类号
代理机构
代理人
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地址
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