发明名称 |
Calculator having a modular keyboard |
摘要 |
A calculator having a keyboard alterable by interchanging various keyboard modules is provided by an arrangement wherein a module is insertable into a floating connector which adjusts the space allowed for the module to the size of the module and which provides reliable electrical connection to a main keyboard. Each module is insertable and removable with one hand by providing a resilient camming member attached to the calculator, which mechanically interacts with a locking and releasing member which is connected to the module and is accessible when the calculator is resting on a desk.
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申请公布号 |
US4333155(A) |
申请公布日期 |
1982.06.01 |
申请号 |
US19790040131 |
申请日期 |
1979.05.18 |
申请人 |
LITTON BUSINESS SYSTEMS, INC. |
发明人 |
JOHNSTON, JOHN N. |
分类号 |
B41J5/10;G06F3/02;(IPC1-7):G06F1/00 |
主分类号 |
B41J5/10 |
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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