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公开(公告)号：US3272245A
公开(公告)日：1966-09-13
申请号：US36351564
申请日：1964-04-29
Applicant: INGERSOLL RAND CANADA
Inventor： DICK GEORGE M , KAPRALOS GLADSTONE H
IPC: B27L1/02
CPC classification number: B27L1/025
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