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Hedman & Costigan PC

Law Firm

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Additional safety device for sear mechanism for firearms

Firearms – Safety mechanism – Hammer or firing pin
Reexamination Certificate

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Airplane

Transportation – Aircraft – spacecraft – or fuselage
Design Patent

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Anti-rolling device for vehicles

Land vehicles – Wheeled – Running gear
Reexamination Certificate

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Apparatus for continuously pasteurizing meat and food products

Foods and beverages: apparatus – Non-cooking heat treatment of food
Reexamination Certificate

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Aromatic glycols and polyols, preparation process and their...

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Reexamination Certificate

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