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Patent applications and USPTO patent grants for Kurpiel; Grzegorz.The latest application filed is for "receiver assembly comprising an armature and a diaphragm".
Patent | Date |
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Receiver assembly comprising an armature and a diaphragm Grant 10,721,566 - Tjepkema , et al. | 2020-07-21 |
Receiver with venting opening Grant 10,708,685 - Hijman , et al. | 2020-07-07 |
Receiver Assembly Comprising An Armature And A Diaphragm App 20180367916 - Tjepkema; Mattijs ;   et al. | 2018-12-20 |
Receiver With Venting Opening App 20180343515 - Hijman; Jan ;   et al. | 2018-11-29 |
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