Steeman; Michael G. M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Steeman; Michael G. M..The latest application filed is for "cylindrical microphone having an electret assembly in the end cover".
- Steeman; Michael G. M. - Castricum NL
| Patent | Date |
|---|---|
| Cylindrical microphone having an electret assembly in the end cover Grant 7,286,680 - Steeman , et al. October 23, 2 | 2007-10-23 |
| Cylindrical microphone having an electret assembly in the end cover App 20060215867 - Steeman; Michael G.M. ; et al. | 2006-09-28 |
| Cylindrical microphone having an electret assembly in the end cover Grant 7,062,058 - Steeman , et al. June 13, 2 | 2006-06-13 |
| Cylindrical microphone having an electret assembly in the end cover App 20020154790 - Steeman, Michael G. M. ; et al. | 2002-10-24 |
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