|
21/66 |
.(包含在 H01H 19/40, H01H 19/44) |
 |
 |
|
|
21/80 |
.(包含在 H01H 19/36,H01H 19/46,H01H 19/50,H01H 19/60) |
 |
 |
|
|
21/82 |
.(包含在 H01H 19/36,H01H 19/46,H01H 19/50,H01H 19/62) |
 |
 |
|
|
21/84 |
.(转入 H01H 19/635,包含在H01H 19/36,H01H 19/46,H01H 19/50) |
 |
 |
|
|
79/00 |
由过电流使触点闭合的保护开关,如用于短路被保护设备的 |
 |
 |
|
|
87/00 |
当流过其液体或固体的电流过载时,由液体蒸发或固体熔化或汽化从而使电流中断,当冷却时电路又重新恢复的保护装置 |
 |
 |
|