| 发明名称 |
Defrosting control system |
| 摘要 |
A system wherein the pulses from a pulse source or the pulses divided or doubled in frequency are selected depending upon environmental conditions, and the number of selected pulses is counted so that an electronic counter generates the defrosting instruction.
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| 申请公布号 |
US4251999(A) |
申请公布日期 |
1981.02.24 |
| 申请号 |
US19790027890 |
申请日期 |
1979.04.06 |
| 申请人 |
MATSUSHITA REIKI CO., LTD. |
发明人 |
TANAKA, YASUHIKO |
| 分类号 |
F25D21/06;F24F11/02;F25B47/02;F25D21/00;(IPC1-7):F25D21/06;G05D23/32 |
主分类号 |
F25D21/06 |
| 代理机构 |
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代理人 |
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| 主权项 |
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