INDUSTRIAL SCIENTIFIC CORP of OAKDALE, PA filed a DEF 14A with the SEC on 1997-05-07. Industry: Industrial Instruments For Measurement, Display, and Control.
| Filed | Form |
|---|---|
| 1999-06-01 | SC 13E3/A |
| 1999-04-29 | SC 13E3/A |
| 1999-04-29 | DEF 14C |
| 1999-04-20 | SC 13E3/A |
| 1999-03-10 | SC 13E3 |
| 1999-03-10 | PREM14C |
| 1998-05-11 | DEF 14A |
| 1997-05-07 | DEF 14A |
| 1997-04-17 | PRE 14A |
| 1996-05-08 | DEF 14A |