Tatra T4 family

T4D-C	ČKD Tatra	1968−1986	1009	T	SKGT T4D-C
T4D	ČKD Tatra	1968−1986	1009	T	SKGT T4D
T4D	ČKD Tatra	1968−1986	1435	T	DVB T4D Eltrans T4D OTL T4D RATBv T4D RATUC T4D
T4D 1000mm	ČKD Tatra	1968−1986	1000	T	CTP T4D GETP T4D
T4D 1524mm	ČKD Tatra	1968−1986	1524	T	AET T4D
T4D-MS	ČKD Tatra	1968−1986	1435	T	OTL T4D-MS
T4D-ZR	ČKD Tatra	1968−1986	1435	T	OTL T4D-ZR
T4D-M	ČKD Tatra	1971−1984 (23)		T	LVB T4D-M VladTram T4DM
T4D-MT	ČKD Tatra	1971−1984 (23)		T	DVB T4D-MT RATC T4D-MT
T4R 1000mm	ČKD Tatra	1974−1981 (321)	1000	T	CTP T4R CTP Iaşi T4R
T4R 1435mm	ČKD Tatra	1974−1981 (321)	1435	T	RATB T4R
T4D-ZR	ČKD Tatra		1000	T	ZET T4YU