Chang Francis

Related Filers (1)

Ownership (4)

4
Tuesday, 3/6/2007
Electronic Sensor Technology, Inc: Statement of changes in beneficial ownership of securities
4
Thursday, 1/18/2007
Electronic Sensor Technology, Inc: Statement of changes in beneficial ownership of securities
3
Friday, 12/29/2006
Electronic Sensor Technology, Inc: Initial statement of beneficial ownership of securities
SC 13D
Thursday, 3/3/2005
Electronic Sensor Technology, Inc: Major Shareholders
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