Wachter; Karl August
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wachter; Karl August.The latest application filed is for "respirator filter construction".
- Wachter; Karl August - Lubeck DT
| Patent | Date |
|---|---|
| Respirator filter construction Grant 3,873,288 - Wachter , et al. March 25, 1 | 1975-03-25 |
| Measuring Device Having Means For Applying A Selected Pressure To A Measured Vessel Grant 3,861,216 - Wachter , et al. January 21, 1 | 1975-01-21 |
| Safety Air Supply Device Grant 3,775,949 - Wachter December 4, 1 | 1973-12-04 |
| Tearaway Tongue For Gastight Container Grant 3,563,407 - Wachter February 16, 1 | 1971-02-16 |
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