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2020
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Invention
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Corner seal device for ductwork for conditioned air and method of assembly of such ductwork to pr... |
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2017
|
Invention
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Handle assembly for rotating a pivot rod attached to a damper within ductwork. The invention is d... |
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2016
|
Invention
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Method and apparatus for preparing release paper rolls of adhesive insulation material and releas... |
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2013
|
Invention
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Adjustable regulator and lock device for ductwork damper. An adjustable regulator and lock device... |
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2012
|
Invention
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Airtight bushing for ductwork damper and the like and ductwork damper unit incorporating same. A ... |
