Cullis Expandable van Aug 23, 2014 14:36:11 GMT 10 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by cobber on Aug 23, 2014 14:36:11 GMT 10 A 1946 patent application by John Herbert Cullis describing an 'Expandable caravan'I don't think we have seen a real live example of this van........ Yet ?The patent application can be seen HERE Cobber.