发明名称 |
Screw having a combined screwdriver slot |
摘要 |
The invention relates to a screw (3) having a depression (2), which is formed on the head upper side and is intended for receiving a corresponding shaped-tip screwdriver, and having at least one slot (8, 9) which is combined therewith and is intended for receiving the tip (12) of a flat-tip screwdriver. In order to improve the gripping surface in the case of said screw, the slot (8, 9) widens slightly towards both ends. <IMAGE>
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申请公布号 |
DE3117658(A1) |
申请公布日期 |
1982.11.25 |
申请号 |
DE19813117658 |
申请日期 |
1981.05.05 |
申请人 |
J. GEORG BIERBACH SCHRAUBENFABRIK |
发明人 |
RENNINGER,KARL;KNOCHE,ALFONS |
分类号 |
F16B23/00;(IPC1-7):F16B23/00 |
主分类号 |
F16B23/00 |
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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