Okla. Stat. tit. 58, § 58-716: Orders fixing date of hearing and notice thereof -

Signing.

Whenever the probate code requires that an order setting date of

hearing and giving notice thereof be signed by a judge, the chief

judge in the county may by judicial order provide that such order or

notice may be signed by the court clerk or his deputy affixing his

signature beneath the place where the judge's name appears followed

with the word "by;" and then followed with the signing officer's

title. Where both an order and notice as to any particular act

provided for in this title are required, allowed, or authorized by

law or by order of the court, said order and notice may be combined

in one document.