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经营范围
发明名称
Tree cavity filling and filler block therefor
摘要
申请公布号
US2147865(A)
申请公布日期
1939.02.21
申请号
US19370124428
申请日期
1937.02.06
申请人
YAHRES GEORGE VAN
发明人
YAHRES GEORGE VAN
分类号
A01G17/18
主分类号
A01G17/18
代理机构
代理人
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地址
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