Card insertion device on electric energy meter box

The utility model relates to a card device for an energy metering box, which is provided with a notch that is positioned on a wing fan and corresponds to position and shape of the card hole in the meter and the notch is provided with a sliding piece for opening or closing the notch. When an electric...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	ZHENFENG MENG
Format:	Patent
Sprache:	eng
Schlagworte:	CHECKING-DEVICES COIN-FREED OR LIKE APPARATUS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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