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公开(公告)号：US3360905A
公开(公告)日：1968-01-02
申请号：US53775866
申请日：1966-03-28
Applicant: TAMPELLA OY AB
Inventor： HEIKKI AARNIO RISTO
IPC: F22B37/26
CPC classification number: F22B37/265
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