Visually, these two units differed from subsequent production standard units in having large pantograph shields resembling the original 300 series design.

These units differed from the first batch by having a slightly different body design, with wide saloon windows replacing the narrow compartment-style windows.

While the two units differ in some features, both allow instant swapping of the big and little picture.

These units differ from the later end-cab versions.

One problem arises when areal units differ in size and significance, as is the case with election maps.

The two units, which are to reach stores in mid-August, differ only in their storage capacity and the design of their speakers.

The units differ in size and floor plans.

The two units also differ in the way they are linked to the camcorder and the copying VCR.

Dwelling units differ from ethnic group to ethnic group, but many follow a fairly common pattern.

The single units differ from the married pairs by having an extra single leaf door located behind each operators booth.