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发明名称
DRAFT GEAR
摘要
申请公布号
CA894629(A)
申请公布日期
1972.03.07
申请号
CAD894629
申请日期
申请人
CANADIAN CARDWELL COMPANY
发明人
BERTIL E. PETERSON
分类号
B61G9/20;(IPC1-7):B61G9/20
主分类号
B61G9/20
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