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发明名称
TREE RING BARKING DEVICE
摘要
申请公布号
GB8509079(D0)
申请公布日期
1985.05.15
申请号
GB19850009079
申请日期
1985.04.09
申请人
ROBINSON, E G S
发明人
分类号
主分类号
代理机构
代理人
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地址
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