| 发明名称 |
CONNECTING METAL ELEMENTS AND PRODUCTS THEREOF |
| 摘要 |
A method of connecting metal elements by a resistance welding process to produce a high strength joint and particularly to connect a refractory type pre-formed carbide head to a shank of a dental bur formed from steel, and the product formed by such method.
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| 申请公布号 |
US3670416(A) |
申请公布日期 |
1972.06.20 |
| 申请号 |
USD3670416 |
申请日期 |
1970.06.29 |
| 申请人 |
DENTSPLY RESEARCH & DEV. CORP. |
发明人 |
ERNEST A. KRODER |
| 分类号 |
A61C3/02;B23K11/04;(IPC1-7):A61C3/02 |
主分类号 |
A61C3/02 |
| 代理机构 |
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