Office-History: Die Geschichte des Rollkoffers - OFFICE ROXX
Painter Alfred Krupa (1915-1989) was the very first man who invented the suitcase with wheels in the early 1950's – ScienceOpen
The mystery of the suitcase with wheels: how believing that it was 'for girls' delayed its invention decades - Spain's News
What came first? Wheeled luggage or a man on the moon? | by Brian Weisberg: Strategy and Innovation | Early-Stage Innovation
Suitcase - Wikipedia
Happy anniversary, wheeled luggage! - CNN.com
Roll Aboard! | Lemelson Center for the Study of Invention and Innovation
Biaggi Creator Stephen Hersh Leapt into 'Shark Tank' and Won | Biaggi
Who Actually Invented the Wheeled Suitcase?
The Radar: Wheely Bags Turn 40; Italian Museums Open Late; Misunderstood Gestures
Who Actually Invented the Wheeled Suitcase?
360 ° Unus Mole Sailing Sailing and Grey Tarpaulin Shopper, White, 2 – Shopper Unus® The Trolley for Mobile and Umweltbewußte People : Amazon.de: Home & Kitchen
Caddie Lunita Sturdy Shopping Trolley Folding Shopping Trolley 2 Wheels 50 Litres Waterproof and Washable Bag Chocolate : Amazon.de: Home & Kitchen