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Patent applications and USPTO patent grants for Hafner; Peter.The latest application filed is for "electromagnetic flow measuring tube and method of making same".
Patent | Date |
---|---|
Electromagnetic flow measuring tube and method of making same Grant 5,280,727 - Hafner , et al. January 25, 1 | 1994-01-25 |
Arrangement for generating DC magnetic fields of alternating polarity for the magnetic-inductive flow measurement Grant 4,410,926 - Hafner , et al. October 18, 1 | 1983-10-18 |
Method of compensating the interference DC voltages in the electrode circuit in magnetic-conductive flow measurement Grant 4,382,387 - Hafner May 10, 1 | 1983-05-10 |
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