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发明名称
SPRING BOOSTER DEVICE
摘要
申请公布号
CA631079(A)
申请公布日期
1961.11.14
申请号
CAD631079
申请日期
申请人
UNIVERSAL AIR LIFT
发明人
DON M. PEMBERTON
分类号
主分类号
代理机构
代理人
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