发明名称 |
Ballpoint pen with visual window and sleeve |
摘要 |
A press-action ballpoint pen includes a hollow shank which has an elongated viewing window. A printed sleeve is rotationally mounted within the hollow shank for rotation past the viewing window upon actuation of a press-action mechanism which operates the ink cartridge.
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申请公布号 |
US6386780(B1) |
申请公布日期 |
2002.05.14 |
申请号 |
US19980144430 |
申请日期 |
1998.08.31 |
申请人 |
BRUMMERNHENRICH KLAUS |
发明人 |
BRUMMERNHENRICH KLAUS |
分类号 |
B43K24/08;B43K29/007;(IPC1-7):B43K29/00 |
主分类号 |
B43K24/08 |
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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