| 发明名称 |
Parachute attachment swivel |
| 摘要 |
A swivel attached to a hermetically sealed device dropped from high altitudes to suspend the device from a parachute and allow free rotation of the device to prevent twisting and entanglement of the parachute during descent.
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| 申请公布号 |
US4170424(A) |
申请公布日期 |
1979.10.09 |
| 申请号 |
US19760652035 |
申请日期 |
1976.01.26 |
| 申请人 |
U S OF AMERICA NAVY SECRETARY |
发明人 |
BOEHM, HELMUT |
| 分类号 |
B64D17/22;F16C33/76;(IPC1-7):F16D1/12;F16D3/00 |
主分类号 |
B64D17/22 |
| 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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