Dudley Thomas J.
Related Filers (3)
Ownership (9)
4
Thursday, 12/3/2009
Electronic Sensor Technology, Inc: Statement of changes in beneficial ownership of securities
3/A
Friday, 1/2/2009
Electronic Sensor Technology, Inc: Initial statement of beneficial ownership of securities
3
Monday, 12/8/2008
Electronic Sensor Technology, Inc: Initial statement of beneficial ownership of securities
4
Wednesday, 8/6/2003
AUTO GRAPHICS INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 4/4/2000
SPACELABS MEDICAL INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 12/21/1999
SPACELABS MEDICAL INC: Statement of changes in beneficial ownership of securities
4
Thursday, 5/21/1998
SPACELABS MEDICAL INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 4/7/1998
SPACELABS MEDICAL INC: Statement of changes in beneficial ownership of securities
4
Tuesday, 7/1/1997
SPACELABS MEDICAL INC: Statement of changes in beneficial ownership of securities