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Driving device

申请公布号:US2272760(A)

申请号:US19400370670

申请日期:1940.12.18

申请公布日期:1942.02.10

申请人:
INGERSOLL-RAND COMPANY

发明人:ALLEN ROY O.

分类号:E01B29/26

主分类号:E01B29/26

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