lub without mullions

http://www.proz.com/kudoz/1038764
http://www.proz.com/kudoz/1014281?float=1

introduction of a revolutionary new approach to unlimited mullion free tiling.
www.screentechnology.com/company.htm

This flexible cable wall, with its insulated glass unitized panels, is a world
first in that it offers a mullion-free glass wall spanning a large distance. ...
www.pubs.asce.org/ceonline/ceonline03/1103feat.html

To enhance daylight in the long, narrow 19- by 118-foot (6- by 36-meter) building,
the storefront was replaced with mullion-free structural glass. ...
www.architectureweek.com/2003/0820/news_1-1.html