发明名称 |
Electronic pocket calculator has mode keys for selection of groups of special pipeline design and construction functions |
摘要 |
Pocket calculator has an input keyboard (11) and a display (14). The keyboard has at least one key (12) for calling up a number of preprogrammed mathematical functions for carrying out complex tasks relating to pipeline design calculations.
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申请公布号 |
DE20301658(U1) |
申请公布日期 |
2004.05.13 |
申请号 |
DE2003201658U |
申请日期 |
2003.01.04 |
申请人 |
NESIC, NIKOLA |
发明人 |
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分类号 |
H04L12/64;(IPC1-7):G06F17/60 |
主分类号 |
H04L12/64 |
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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