[raganwald]

To put it another way, compare and contrast the following statements:

Amazon's patent covers a networked computer system [that] provides various services for assisting users in locating, and establishing contact relationships with, other users.

And:

Amazon's patent covers every networked computer system [that] provides various services for assisting users in locating, and establishing contact relationships with, other users.

[tkeller]

That actually is a good way of highlighting the distinction.