Because the product has been slightly altered from it's original form or format and they have improved it's look, speed, usability, etc. depending on the product. (It's usually just an advertising ploy to get you to by the same product again.)
It probably means it is new because it has been improved. Compete irony though. May be an oxymoron too.
No they say there isn't, but it does need to be improved.
I believe it was improved later on after WW1
The assembly line is an example of a way that technology is improved by new _method_.
Method.
There has been no improved iPad introduced since the 3rd Generation (New iPad) was introduced on March 7, 2012.
that improved diets from new food sources.That it improved diets from new food sources
This dramatic improvement is attributed to new surgical techniques, improved diagnosis, and new techniques of medical treatment.
By new and improved ideas
The assembly line is an example of a way that technology is improved by new _method_.
Engineering science has improved engineering and how precise engineers can be with the advancements in technology and new machinery.
Percentages are percentages - simple! The marketing people have not yet come up with "new improved" percentages.