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发明名称
Planting implement
摘要
申请公布号
US1980562(A)
申请公布日期
1934.11.13
申请号
US19330679115
申请日期
1933.07.05
申请人
M. DANIEL JOHNSON
发明人
WALKER GEORGE M.
分类号
A01C5/00
主分类号
A01C5/00
代理机构
代理人
主权项
地址
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