| 发明名称 |
DOUBLE HELICAL PRINTER |
| 摘要 |
A helical printing wheel having an alpha and numeric helical type element paths one being offset from the other by substantially one-half a character width to provide for the elimination of dead space on the wheel.
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| 申请公布号 |
US3669237(A) |
申请公布日期 |
1972.06.13 |
| 申请号 |
USD3669237 |
申请日期 |
1970.05.04 |
| 申请人 |
AMERICAN REGITEL CORP. |
发明人 |
ROBERT L. WAGNER;EVAN L. RAGLAND |
| 分类号 |
B41J1/34;(IPC1-7):B41J1/32 |
主分类号 |
B41J1/34 |
| 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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