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公开(公告)号：US3534703A
公开(公告)日：1970-10-20
申请号：US3534703D
申请日：1969-07-15
Applicant: SAAB SCANIA AB
Inventor： EKMAN NILS PER
CPC classification number: B63H20/22 , B63H3/082 , B63H20/12 , B63H2023/025
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