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公开(公告)号：US1483457A
公开(公告)日：1924-02-12
申请号：US35271720
申请日：1920-01-20
Applicant: WESTINGHOUSE ELECTRIC PRODUCTS
Inventor： HENRY KRUESHELD
IPC: D06F79/00
CPC classification number: D06F79/00
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公开(公告)号：US1438602A
公开(公告)日：1922-12-12
申请号：US39657420
申请日：1920-07-15
Applicant: WESTINGHOUSE ELECTRIC PRODUCTS
Inventor： HENRY KRUESHELD
IPC: A47J37/06
CPC classification number: A47J37/0611
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