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Patents for John Obreski | |||||
Number | Date | Patentee | Title | Type | |
2,871,886 | Feb. 03, 1959 | N.V. Gusching, J. Obreski | Manifold | ||
2,871,887 | Feb. 03, 1959 | N.V. Gusching, J. Obreski | Manifolding |