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发明名称
Pretensioning system
摘要
申请公布号
US2827248(A)
申请公布日期
1958.03.18
申请号
US19560577183
申请日期
1956.04.09
申请人
ZELM WILLEM D VAN;NEVIN JR KIRKWOOD S
发明人
ZELM WILLEM D. VAN;JR. KIRKWOOD S. NEVIN,
分类号
B64F1/06
主分类号
B64F1/06
代理机构
代理人
主权项
地址
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