Interdynamic AB, Interdynamic USA, Intratec, etc. They all made a different version of a really cool gun!

Firearms List:

INTERDYNAMIC AB | (????):
(????) Interdynamic MPT Prototype

INTERDYNAMIC USA | (1981* - 1984):
(1981) - KG-9
(1982) - KG-99 (Original, Stainless)
(1982) - KG-99 Mini (Original, Stainless Steel)
(1982) - KG-99 Sport (Original, Stainless Steel)
(1982*) - Interdynamic MP-9

INTRATEC | (1984 - 1987):
TEC-9* (Original, Stainless Steel)
TEC-9 Mini* (Original, Stainless Steel)

INTRATEC (Navegar Corperation) | (1987 - 2001)
(1987) - TEC-22 Scorpion
(1990) - TEC-22T Scorpion (Original, Nickel, Stainless Steel, Kote)
(1990) - TEC-DC9 (Original, Stainless Steel, Kote)
(1990) - TEC-DC9 Mini (Original, Stainless Steel, Kote)
(1990) - CAT-9
(1991) - Protec-22
(1991) - Protec-25
(1995) - CAT-45
(1996) - CAT-46
(1997) - AB-10 (Original, Stainless Steel)
(1997) - Sport-22 (Original, Stainless Steel)

Intratec (under the Navegar Corperation) went out of business in 2001, despite AB-10s being advertised for 2002.