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公开(公告)号：US2555726A
公开(公告)日：1951-06-05
申请号：US6284248
申请日：1948-12-01
Applicant: ERHARDT L BECKER , CHARLES F KOLB , ROBERT B EDDY , KURT BEYRODT
Inventor： KURT BEYRODT
CPC classification number: A61H33/0091 , A61H33/02 , A61H33/60 , A61H2201/1207 , A61H2201/1436
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