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公开(公告)号：US639135A
公开(公告)日：1899-12-12
申请号：US1899716298
申请日：1899-05-10
Applicant: GOTTLIEB KAHLE , THEODOR HENJES , LUDWIG BEISSNER
Inventor： BENSELER HEINRICH
CPC classification number: A01M21/00
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