Circuit breaker panelboard

Claim 1

AN ELECTRICAL PANELBOARD FOR CIRCUIT BREAKERS COMPRISING AN OPEN-FRONT BOX INCLUDING A BACK WALL, A MOUNTING PANEL ASSEMBLY REMOVABLY SECURED TO SAID BACK WALL WITHIN SAID BOX AND HAVING A PLURALITY OF MOUNTING SPACES FOR CIRCUIT BREAKERS, A CIRCUIT BREAKER OF A FIRST CASING CONFIGURATION MOLUNTED ON SAID MOUNTING PANEL ASSEMBLY IN ONE OF SAID MOUNTING SPACES, A CIRCUIT BREAKER OF A SECOND CASING CONFIGURATION MOUNTEDO N SAID MOUNTING PANEL ASSEMBLY IN ANOTHER OF SAID MOUNTING SPACES, AND A BAR MEMBER SECURED TO SAID MOUNTING PANEL ASSEMBLY, SAID CIRCUIT BREAKER OF SAID FIRST CASING CONFIGURATION HAVING A PORTION DISPOSED BETWEEN SAID BAR MEMBER AND SAID BACK WALL OF SAID BOX IN OVERLAPPING RELATIONSHIP WITH SAID BAR MEMBER TO EFFECT AN INTERFERING RELATIONSHIP WITH SAID BAR MEMBER, ALL PORTION OF SAID CIRCUIT BREAKER OF SAID SECOND CASING CONFIGURATION BETWEEN SAID BAR MEMBER AND SAID BACK WALL OF SAID BOX BEING DISPOSED LATERALLY OF SAID BAR MEMBER, AND SAID BAR MEMBER INTERFERING WITH REMOVAL OF SAID CIRCUIT BREAKER OF SAID FIRST CASING CONFIGURATION FROM SAID MOUNTING PANEL ASSEMBLY AND INTERFERING WITH THE MOUNTING OF ANOTHER CIRCUIT BREAKER OF SAID FIRST CASING CONFIGURATION ON SAID MOUNTING PANEL ASSEMBLY IN A THIRD OF SAID MOUNTING SPACES AND ACCOMMODATING REMOVAL OF SAID CIRCUIT BREAKER OF SAID SECOND CASING CONFIGURATION FROM SAID MOUNTING PANEL ASSEMBLY WITHOUT INTERFERENCE AND ACCOMMODATING THE MOUNTING OF ANOTHER CIRCUIT BREAKER OF SAID SECND CASING CONFIGURATION ON SAID MOUNTING PANEL ASSEMBLY IN SAID THIRD MOUNTING SPACE WITHOUT INTEREFERENCE.