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发明名称
Sectional structure
摘要
申请公布号
US1960001(A)
申请公布日期
1934.05.22
申请号
US19330694991
申请日期
1933.10.24
申请人
MARTIN DAVIES CLAUDE
发明人
DAVIES CLAUDE MARTIN
分类号
A01G13/04
主分类号
A01G13/04
代理机构
代理人
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