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发明名称
LOCOMOTIVE SMOKE DRAFT APPARATUS
摘要
申请公布号
CA336377(A)
申请公布日期
1933.10.17
申请号
CAD336377
申请日期
申请人
WILLIAM E. SKINNER;HARRY G. DAY
发明人
HARRY G. DAY;WILLIAM E. SKINNER
分类号
主分类号
代理机构
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