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发明名称
IMPROVEMENTS IN OR RELATING TO RING MECHANISMS
摘要
申请公布号
GB1261835(A)
申请公布日期
1972.01.26
申请号
GB19690006234
申请日期
1969.02.05
申请人
MICHAEL ANTHONY PLATT
发明人
MICHAEL ANTHONY PLATT
分类号
B42F13/26
主分类号
B42F13/26
代理机构
代理人
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地址
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