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发明名称
JIG AND METHOD FOR PERFORMING WORK IN A WEIGHTLESS MEDIUM
摘要
申请公布号
CA915447(A)
申请公布日期
1972.11.28
申请号
CAD915447
申请日期
申请人
TELECHECK INTERNATIONAL
发明人
GUY N. ROTHWELL, JR.
分类号
B22D19/10;E21B41/04;F16L1/26;(IPC1-7):E21B41/04
主分类号
B22D19/10
代理机构
代理人
主权项
地址
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