Getting System Family Name in Revit

[theshysnail]

How can I get the System Family name through Dynamo e.g. Rectangular Duct is a System family name and Mitred Elbow / Taps is a type.
I want to get Rectangular Duct in Dynamo which I am unable to do through basic nodes.

[steinah6]

Archilab and Clockwork have nodes that can do this (nodes in respective order)