Packaging of electronic components

Claim 1

AN ELECTRICAL APPARATUS COMPRISING: A HOUSING IN THE SHAPE OF A PARALLELEPIPEDONAL ENCLOSURE WITH AT LEAST ONE OPEN END; A SERIES OF SYMETRICALLY DISPOSED PARALLEL U-CHANNELS SUBSTANTIALLY PERPENDICULAR TO THE PLANE OF THE OPEN END OF SAID HOUSING; A PLURALITY OF ELECTRICAL BAY ASSEMBLIES HAVING RAILS ON TWO OPPOSITE SIDES CORRESPONDING TO AN OPPOSITE PAIR OF SAID CHANNELS FOR SLIDABLE ENGAGEMENT THEREWITH FOR MOUNTING OF SAID BAY ASSEMBLIES WITHIN SAID HOUSING; MECHANICAL MEANS LOCKING SAID BAY ASSEMBLIES SECURELY IN POSITION IN SAID HOUSING; ELECTRICAL WIRE CONNECTIONS BETWEEN THE SEVERAL SUCH BAY ASSEMBLIES BY MEANS OF MULTIPIN PLUG-IN CONNECTORS; A PLURALITY OF ELECTRICAL FUNCTIONAL UNITS CONTAINED IN SUBSTANTIALLY IDENTICAL PARALLELEPIPEDONAL ENVELOPES PLUGGED IN REGULARLY DISPOSED CONNECTORS IN EACH ONE OF SAID ELECTRICAL BAY ASSEMBLIES; MECHANICAL MEANS FOR LOCKING SAID ELECTRICAL FUNCTIONAL UNITS SECURELY IN PLACE; ELECTRICAL WIRE CONNECTIONS BETWEEN SAID CONNECTORS; A PLURALITY OF MODULAR ELECTRICAL UNITS CONTAINED IN SUBSTANTIALLY IDENTICAL ENVELOPES PLUGGED IN REGULARLY DISPOSED SOCKETS IN EACH ONE OF SAID ELECTRICAL FUNCTIONAL UNITS; AND ELECTRICAL WIRE CONNECTIONS BETWEEN SAID SOCKETS, AND BETWEEN SAID SOCKETS AND SAID CONNECTORS WITHIN EACH ONE OF SAID ELECTRICAL FUNCTIONAL UNITS.