The phrase "after which when" is not correct and is not usable in written English.
It appears to be a redundancy, as "after which" and "when" serve similar purposes in indicating a time relationship.
Example: "We completed the project, after which when we reviewed it, we found several errors."
Alternatives: "after which" or "subsequently".
This triggers a 30-day waiting period, after which – when logistics and other bureaucracy is satisfied – he may come home.
There was absolute silence: then funeral music, after which, when the orchestra had finished, a revolutionary dirge was sung by all in the hall, while soldiers stood at attention.
But then the Army got serious and I was next a combat engineer being shot at by Germans in Belgium and the Rhineland, after which, when the shooting stopped, I was transferred into Special Services and became a G.I. comedian entertaining the troops with song parodies like Cole Porter's "Begin the Beguine" morphed into "When we begin to clean the latrine".
His previous shows include "The Short Century," a survey of African cultures after 1945, which, when it appeared at P.S. 1, earlier this year, I found richly informative, though aesthetically numbing.
When you work in showbiz you get asked on dates by Z-listers a lot (a lot) after interviews, which – when I was starting out – I naively thought was very, very exciting.
He'd practically named his new hotel after it, but at some point in the course of construction he'd changed his mind and decided to name the hotel after himself, which, when you think of it, was a good idea, what with the homonym and all.
He then advances to denser secondary sources about Richard, his family, and the Princes in the Tower, learning about the secret marriage agreement the princes' father had made, which, when discovered after the father's death, rendered the sons illegitimate.
I recently rediscovered Jerry Lee Lewis – which when played after lunch, lifts peoples' spirits more than any drug can, perhaps providing an element of 'escapism' from station life. .
Our small RNA profiles support these previous results but show small RNA production occurring at the same time as karyogamy, not after, which is when MSUD is thought to occur (Shiu et al. 2001).
On Nov. 9, 1518, Leo X issued the bull Cum postquam ("When After"), which defined the doctrine of indulgences and addressed the issue of the authority of the church to absolve the faithful from temporal punishment.
The title also provided an income from the north west part of Wales known as the Principality of Wales, until the Act of Union (1536), after which the term principality, when used, was associated with the whole of Wales.
