发明名称 HOSE CONSTRUCTION
摘要 An elongated hose construction is provided which is particularly adapted for use on a vacuum cleaner. The hose construction comprises a hose having a plurality of integral convolutions which give the hose optimum flexibility and at least one convolution comprising one end portion of the hose is used to attach a simple, inexpensive fitting thereto in a substantially air tight manner.
申请公布号 US3727949(A) 申请公布日期 1973.04.17
申请号 USD3727949 申请日期 1971.12.20
申请人 DAYCO CORP,US 发明人 HOLDEN H,US;KLEYKAMP D,US;NERONI P,US
分类号 F16L11/11;A47L9/24;F16L27/08;F16L33/00;F16L33/24;F16L33/30;(IPC1-7):A47L9/24 主分类号 F16L11/11
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