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MET-COIL SYSTEMS CORPORATION
| MET-COIL SYSTEMS CORPORATION Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20100135720 | DUCT FASTSEAM - A seam for ductwork has a male end portion integrally formed at a distal end of a duct wall and a female end portion integrally formed at another distal end of the duct wall. The female end portion includes a first fold and a second fold, which define a female groove for accommodating the male portion. A distal end of the second fold is bent transverse to the female groove prior to the male portion being inserted into the female groove. | 06-03-2010 |