Irik; Gijsbert W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Irik; Gijsbert W..The latest application filed is for "isolator switches provided with grounding switch blades and ground responsive signalling and protective means".
- Irik; Gijsbert W. - Bilthoven NL
| Patent | Date |
|---|---|
| Isolator Switches Provided With Grounding Switch Blades And Ground Responsive Signalling And Protective Means Grant 3,599,041 - Boersma , et al. August 10, 1 | 1971-08-10 |
| Electric Current Contact Grant 3,571,547 - Boersma , et al. March 23, 1 | 1971-03-23 |
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