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发明名称
SEEDING MACHINE MARKER
摘要
申请公布号
CA438971(A)
申请公布日期
1947.01.07
申请号
CAD438971
申请日期
申请人
WILLIAM R. BYERS
发明人
WILLIAM R. BYERS
分类号
主分类号
代理机构
代理人
主权项
地址
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