1.	US6802741(B1) - Electric plug for a power cord
2.	US1912252(A) - Switch equipped plug
3.	FR2209228(A1) -
4.	FR2352417(A1) - Plug with inbuilt rocker arm switch - includes bistable rocker acting on moving flat spring contact fixed to housing at one end
5.	FR2753010(A3) - Electrical domestic simplex socket entrance with switch
6.	FR2100447(A5) -
7.	JPS50118270(A) -
8.	CN1080436(A) - POWER SUPPLY PLUG HAVING THE FUNCTION OF SWITCH