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.
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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