Hi Rob,
Here goes:
PST -2004
PST II - 2004
Original Supertool - 2001
Supertool 200 - 2005
Sideclip - 2004
MiniTool - 2004
Pulse - 2004
Flair - 2004
Original Wave - 2004
Juice Kf4 - 2005
Juice Pro - 2003
You might also be interested to know that the Sideclip was introduced in 1998.
The dates were confirmed by the Senior Customer Service person at Leatherman. Joe