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经营范围
发明名称
BLACK POWDER
摘要
申请公布号
CA326148(A)
申请公布日期
1932.09.20
申请号
CAD326148
申请日期
申请人
THE CANADIAN INDUSTRIES LIMITED
发明人
WILLIAM ALFRED MCINTYRE
分类号
主分类号
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代理人
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