$PTC S-8 POS SEC Filings

Filed On	Filing
22 Sep 2005	PTC S-8 POS FOR RS NO. 333-72783 DATED 9/21/2005
22 Sep 2005	PTC S-8 POS RS NO. 333-93729 DATED 9/21/2005
22 Sep 2005	PTC S-8 POS FOR RS NO. 333-55800 DATED 9/21/05
20 May 2005	POST EFFECTIVE AMENDMENT NO. 1 TO FORM S-8
20 May 2005	POST EFFECTIVE AMENDMENT NO.1 TO FORM S-8
24 Jul 2003	PTC POS NOS. 2 AND 1 TO FORM S-8
24 Jul 2003	PTC POS NOS. 2 AND 1 TO FORM S-8
21 Feb 1997	POST EFFECTIVE AMENDMENT NO. 1 TO S-8