| 发明名称 |
Fluid operable hammer |
| 摘要 |
{PG,1 A fluid operable hammer including variable volume exhaust fluid receiving chamber means cooperable with improved motive fluid inlet and exhaust valve means.
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| 申请公布号 |
US4150603(A) |
申请公布日期 |
1979.04.24 |
| 申请号 |
US19770830557 |
申请日期 |
1977.09.06 |
| 申请人 |
JOY MANUFACTURING |
发明人 |
ETHERINGTON, MURRAY D;ROBERTS, DAVID V |
| 分类号 |
B25D9/12;B21J7/24;B21J7/28;B21J7/46;B21J15/22;(IPC1-7):F01L15/02 |
主分类号 |
B25D9/12 |
| 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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