...technologies...

In the nineteenth century and throughout the first half of the twentieth century, it could be taken for granted that technologies outside one's own industry had no, or at least only minimal, impact on the industry. Now the assumption to start with is that the technologies that are likely to have the greatest impact on a company and an industry are technologies outside its field.
The original assumption was of course that one's own research lab would and could produce everything the company - or the company's industry - needed. And in turn the assumption was that everything that this research lab produced would be used in and by the industry that it served.

The Essential Drucker
Peter F. Drucker
Collins Business (HarperCollins)