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2021
|
Invention
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Apparatus and method for forming duct flanges and duct work. An apparatus and method are disclose... |
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2020
|
P/S
|
Machines for making air ducts comprising machines for inserting corners into ducts |
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2016
|
P/S
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Corners for machines for making air ducts comprising machines for inserting corners into air ducts |
|
|
Invention
|
Apparatus and method for placement of angle plates in transverse duct flanges. An apparatus and m... |
|
|
P/S
|
Machine parts, namely, metal angle plates for use with angle plate insertion machines that insert... |
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2015
|
Invention
|
Apparatus and method for inserting angle plates and closing duct seams. An apparatus and method a... |
|
2014
|
Invention
|
Apparatus and method for forming duct assemblies. An apparatus and method are described for autom... |
|
|
Invention
|
Sleeve for angle plates of transverse duct flanges. An apparatus and method are described for ins... |
|
|
Invention
|
Angled plate placement in transverse duct flanges. An apparatus and method are described for inse... |
|
2013
|
P/S
|
machines for making air ducts comprising machines for inserting corners into ducts |
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2007
|
P/S
|
Angle plates; ductwork; parts and fittings therefor. Machines for inserting angle plates into duc... |
|
1993
|
P/S
|
machines for making air ducts |
