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发明名称
Convertible swing construction
摘要
申请公布号
US2478432(A)
申请公布日期
1949.08.09
申请号
US19470767885
申请日期
1947.08.11
申请人
SULLIVAN JAMES J
发明人
SULLIVAN JAMES J.
分类号
A63G9/00
主分类号
A63G9/00
代理机构
代理人
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