| 发明名称 |
Protective headguard |
| 摘要 |
Protective headguard comprising overlapped inner and outer layers attached so as to permit frictional sliding of at least one area of the outer layer over the inner layer.
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| 申请公布号 |
US2004250340(A1) |
申请公布日期 |
2004.12.16 |
| 申请号 |
US20040771898 |
申请日期 |
2004.02.04 |
| 申请人 |
PIPER DENNIS;CLEVELAND WILLIAM;LAMPE JOHN K. |
发明人 |
PIPER DENNIS;CLEVELAND WILLIAM;LAMPE JOHN K. |
| 分类号 |
A42B3/00;A42B3/06;(IPC1-7):A42B3/00 |
主分类号 |
A42B3/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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