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公开(公告)号：US2513624A
公开(公告)日：1950-07-04
申请号：US7298749
申请日：1949-01-26
Applicant: ROBERT MITCHELL COMPANY LTD
Inventor： ALFRED BUNKER HARRY
IPC: A47K1/02
CPC classification number: A47K1/02 , E03C2201/90
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公开(公告)号：US2498940A
公开(公告)日：1950-02-28
申请号：US7298849
申请日：1949-01-26
Applicant: ROBERT MITCHELL COMPANY LTD
Inventor： ALFRED BUNKER HARRY
CPC classification number: B61D35/002 , A47K1/02 , E03C2201/90
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