The phrase "a system that permitted" is correct and usable in written English.
You can use it when describing a system that allows or enables certain actions or processes to occur.
Example: "The new software introduced a system that permitted users to access their files remotely."
Alternatives: "a system that allowed" or "a system that enabled".
"Who would ever sit down and think of designing a system that permitted China to get three trillion dollars worth of reserves, and for the U.S. to happily use all that money to run up housing prices?" Volcker said.
Finally, if there was a system that permitted outsized returns by analyzing stocks in a certain manner, or by following a well-defined methodology, it would be published in a peer reviewed journal like The Journal of Finance.
We do a lot of lobbying, and as a result, we have laws and a system that permits us to be in good shape".
In 1924, Louis J Duprey of Dorchester, Massachusetts, patented a system that "permits any patron of the theatre to enter or leave his place without at all disturbing other patrons".
Chyrel Park and Walt Evanyk, from Garland and Plano, Tex., work for Ericsson, and have won a patent for a system that permits cell phone owners to connect to the electrical systems in their cars.
Ford also offers radar-enabled adaptive cruise control and amenities called MyKey, which allows parents to impose certain limitations on teenage drivers, and Sync, a system that permits hands-free interaction with mobile phones and the vehicle's audio system.
And I don't see why conservatives ought to defend a system that permits securitizing mortgages (or car loans) in a way that seems to make the lenders almost unaccountable for the risk while spreading it, toxically, everywhere else.
New York is one of the few states with a system that permits companies to raise or lower rates within a band of several percentage points as they choose rather than seeking regulatory approval for each change.
The wide-ranging modulations and affective harmonic progressions of German Baroque composers depended on equal temperament, a system that permits exploration of keys distant from the tonic without the necessity of retuning to accommodate the remote harmonies.
The behavior of fine particles in a low-pressure parallel plate chemical vapor deposition reactor was investigated by constructing a system that permits particle motion in the reactor to be visualized.
