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Question

I have a laptop power brick with this symbol on it.

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It reminds me of a Class II symbol:

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but is, obviously, different.

The central symbol looks like a noiseless (clean) earth (ground) symbol (see here):

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It's unclear what the two symbols might mean if they're nested.

Answer

This is symbol is meant to "identify a piece of class II equipment with the functional earthing (grounding)." (Source)

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