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公开(公告)号：US1908641A
公开(公告)日：1933-05-09
申请号：US37124429
申请日：1929-06-15
Applicant: ALEMITE CORP
Inventor： ERICSON GEORGE R , WHEELER PHILLIP R
IPC: F16N27/00
CPC classification number: F16N27/00
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