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公开(公告)号：US3326251A
公开(公告)日：1967-06-20
申请号：US38330664
申请日：1964-07-17
Applicant: SUNDS AB
Inventor： GUNNAR HEROLF KJELL OLOF , ARTHUR JOHNSSON STIG , PER-GUSTAF MELLGREN
IPC: A01G23/08 , A01G23/097
CPC classification number: A01G23/08 , A01G23/097
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