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I (3 manufacturers)

I. (1 manufacturers)

IA (9 manufacturers)

IC (13 manufacturers)

ID (7 manufacturers)

IE (1 manufacturers)

IG (3 manufacturers)

IH (1 manufacturers)

IK (2 manufacturers)

IL (8 manufacturers)

IM (14 manufacturers)

IN (135 manufacturers)

IO (3 manufacturers)

IP (1 manufacturers)

IR (50 manufacturers)

IS (51 manufacturers)

IT (7 manufacturers)

IV (24 manufacturers)

IW (2 manufacturers)

IX (1 manufacturers)

IZ (1 manufacturers)