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发明名称
APPARATUS FOR PLACING FLEXIBLE SHEETS IN PROTECTIVE ENVELOPES
摘要
申请公布号
CA887508(A)
申请公布日期
1971.12.07
申请号
CAD887508
申请日期
申请人
SEISMOGRAPH SERVICE CORPORATION
发明人
IRA G. LAWS
分类号
主分类号
代理机构
代理人
主权项
地址
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