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发明名称
Spring motor
摘要
申请公布号
US1936072(A)
申请公布日期
1933.11.21
申请号
US19290398905
申请日期
1929.10.11
申请人
RODERICK HARRY L
发明人
RODERICK HARRY L.
分类号
A63H27/22;F03G1/00
主分类号
A63H27/22
代理机构
代理人
主权项
地址
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