Metal working – Means to assemble or disassemble – Overedge assembling means
Reexamination Certificate
2007-02-27
2007-02-27
Watson, Robert C. (Department: 3723)
Metal working
Means to assemble or disassemble
Overedge assembling means
Reexamination Certificate
active
11093193
ABSTRACT:
A compact, easy-to-use, hand tool which is made for the use of installing “Ductmate Clips” on Heating and Air Conditioning sheet metal ductwork utilizing a “Ductmate”, “TDC”, or “TDF” assembly system. The tool is further used in the removal of said “Ductmate Clips”, when ductwork demolition is required.
REFERENCES:
patent: 1740158 (1929-12-01), Dinklage
patent: 4999898 (1991-03-01), Schmeling
patent: 5020202 (1991-06-01), Turrell
patent: 6925697 (2005-08-01), Kratz
patent: 6957476 (2005-10-01), Poutre′ et al.
Marlow, Jr. Leonard G.
Owens William M.
Sutton Charles R.
Watson Robert C.
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