The phrase "appoint one or more" is correct and usable in written English.
It can be used when referring to the act of designating a person or group for a specific role or task, indicating that there may be multiple appointees.
Example: "The committee decided to appoint one or more representatives to attend the conference on behalf of the organization."
Alternatives: "designate one or more" or "assign one or more".
In these specialties, doctors are assigned to their regular department duties (outpatient care, inpatient admissions, residents' and medical students' training,…), but each department has to appoint one or more on-call consultant doctors that may be contacted by the ED to examine specific patients.
The President may appoint one or more Appointments Committees for senior appointments and one or more for junior appointments, and the President may appoint special Appointments Committees.
The court may appoint one or more disinterested persons to serve as trustee in the case.
The responsible official shall appoint one or more records managers to implement the record retention policy at the departmental level.
One of his first tasks will be to appoint one or more curators devoted to new art, he said.
The next president may have the chance to appoint one or more justices who could make a majority for the pro-prayer camp.
A durable power of attorney for health care, appointing one or more people to make medical decisions on your behalf if you are unable to make them yourself.
(g) Appointing one or more loan officers and delegating to those officers the power to approve or disapprove loans, lines of credit or advances from lines of credit.
The records manager in turn appoints one or more records custodians who are responsible for retaining record copies of documents according to established standards and systems.
He may appoint one or a dozen persons to do the same thing.
We must not ignore the fact that the winner of this election will appoint one if not more Supreme Court Justices to the highest court in the land, this could hugely affect women for generations.
