Coupling ring for ventilation ducts

USD454949S1 · kind S1 · design

Assignee

• LINDAB AB · SE

Inventors

• Lars-åke Mattsson · Ystad, SE
• Kenneth Lennartsson · Torekov, SE
• Sten Högman · Grevie, SE
• Carl-Gustaf Sonden · Ängelholm, SE

Key dates

• Filing date: Jan 17, 2001
• Grant date: Mar 26, 2002
• Expiry date: Mar 26, 2016

Classification

• Technology area (CPC —): General