发明名称 |
Mechanical pencil |
摘要 |
A mechanical pencil of the type having a pushbutton lead-feeding mechanism is provided with a space into which a replaceable cartridge containing leads can be inserted. The cartridge has a lead outlet opening which is blocked by a closure that is moved out of the way upon such insertion so that the leads can thereupon move sequentially into the lead-feeding mechanism, permitting a user to write until all leads in the cartridge are used up.
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申请公布号 |
US4247215(A) |
申请公布日期 |
1981.01.27 |
申请号 |
US19780910504 |
申请日期 |
1978.05.30 |
申请人 |
A. W. FABER-CASTELL |
发明人 |
LEUTHOLD, WERNER;KRUMNIKL, SVATOPLUK;BABEL, GUENTHER |
分类号 |
B43K21/00;B43K21/20;(IPC1-7):B43K21/16 |
主分类号 |
B43K21/00 |
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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