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发明名称
PERFEZIONAMENTO NEGLI ANELLI DI TENUTA PER ALBERI
摘要
申请公布号
IT1146064(B)
申请公布日期
1986.11.12
申请号
IT19800050189
申请日期
1980.11.18
申请人
FREUDENBERG CARL
发明人
HOLZER HELMUT;ARNDT ERNST MORITZ VON
分类号
F16J15/32;(IPC1-7):F16J/
主分类号
F16J15/32
代理机构
代理人
主权项
地址
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