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公开(公告)号：US2911765A
公开(公告)日：1959-11-10
申请号：US36906053
申请日：1953-07-20
Applicant: STUDLER CLARA B
Inventor： STUDLER CLARA B
IPC: B24B15/04
CPC classification number: B24B15/04 , Y10T279/1241 , Y10T279/3481 , Y10T279/3493
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公开(公告)号：US2671217A
公开(公告)日：1954-03-09
申请号：US23926751
申请日：1951-07-30
Applicant: STUDLER CLARA B
Inventor： STUDLER CLARA B
IPC: A41C3/00
CPC classification number: A41C3/00
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公开(公告)号：US2758311A
公开(公告)日：1956-08-14
申请号：US38254153
申请日：1953-09-28
Applicant: STUDLER CLARA B
Inventor： STUDLER CLARA B
IPC: A41C1/02
CPC classification number: A41C1/02
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