Friday - April 4, 2025

Apparatus and Method for Closing Duct Seams and for Inserting Angle Plates and Closing Duct Seams

2025-03-25

ALEXANDRIA, Virginia, March 28 -- HVAC INVENTORS/SYSTEMATION, INC., Port St. Lucie, Florida has been assigned a patent (No. US 12257618 B1, initially filed Sept. 25, 2024) developed by David E. Daw, Port St. Lucie, Florida, and John T. Ehling, Edison, New Jersey, for "Apparatus and method for closing duct seams and for inserting angle plates and closing duct seams." . . .

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Apparatus and Method for Closing Duct Seams and for Inserting Angle Plates and Closing Duct Seams

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