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经营范围
发明名称
Torsion recoil spring
摘要
申请公布号
US2491539(A)
申请公布日期
1949.12.20
申请号
US19460665715
申请日期
1946.04.29
申请人
WINDHAM RAY K
发明人
WINDHAM RAY K.
分类号
F41A3/78
主分类号
F41A3/78
代理机构
代理人
主权项
地址
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