Pittsburgh, PA, US
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Patent Grant
O'Donnell & Associates, Inc.
Jan S. Porowski
C21 - METALLURGY OF IRON
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Patent Grant
O'Donnell & Associates, Inc.
Jan S. Porowski
G01 - MEASURING TESTING
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Patent Grant
O'Donnell & Associates, Inc.
Jan S. Porowski
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
O'Donnell & Associates, Inc.
Jan S. Porowski
G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
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Patent Grant
O'Donnell & Associates, Inc.
Jan S. Porowski
C21 - METALLURGY OF IRON
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Patent Grant
O'Donnell & Associates, Inc.
Jan S. Porowski
F28 - HEAT EXCHANGE IN GENERAL
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Patent Grant
O'Donnell & Associates, Inc.
William J. O'Donnell
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent Grant
O'Donnell & Associates, Inc.
Engelina Porowski
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Patent Grant
O'Donnell & Associates, Inc.
Jan S. Porowski
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Patent Grant
O'Donnell & Associates, Inc.
Isaac I. Secemski
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
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Patent Grant
O'Donnell & Associates Inc.
Janek S. Porowski
F28 - HEAT EXCHANGE IN GENERAL
