| 发明名称 |
Electronic chronograph |
| 摘要 |
The chronograph comprises a device allowing to memorize at least two lapses of time and a subtraction device to effect the absolute difference between two lapses of time or time intervals which are memorized and preselected. The subtraction device includes:
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| 申请公布号 |
US4094138(A) |
申请公布日期 |
1978.06.13 |
| 申请号 |
US19750598691 |
申请日期 |
1975.07.24 |
| 申请人 |
EBAUCHES S.A. |
发明人 |
CHETELAT, FERNAND;HERSBERGER, PIERRE |
| 分类号 |
G04F10/00;G04F10/04;(IPC1-7):G04F8/00 |
主分类号 |
G04F10/00 |
| 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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