.~.~ Receptacle having distinct openings for distinct prongs
DEFINITION
Classification: 439/222
Receptacle having distinct openings for distinct prongs:
(under subclass 218) Coupling part comprising a receptacle* including a contact located within a first recess therein for receipt of a male contact and including a contact within a second recess are constructed such that only a contact of a required characteristic with respect to the coupling part of which it is a part can interfit therewith.
