Decorative lights are mounted on trees such as Christmas trees or the like by positioning a crown at the top of the tree with the crown including a closed loop collar to which a plurality of elongated tracks are pivotally mounted with a pulley associated with each track and being secured to the collar...http://www.google.fr/patents/US4404621?utm_source=gb-gplus-shareBrevet US4404621 - Method and device for mounting lights to Christmas trees
Method and device for mounting lights to Christmas trees
