Okla. Stat. tit. 19, § 19-1607: Agents of transient merchants

Each person designated by a transient merchant as his agent in

the application for a license shall be a resident of the county and

shall be an agent of the transient merchant upon whom any process,

notice, or demand required or permitted by law to be served upon the

transient merchant may be served. The agent shall agree in writing

to act as such agent and a copy of the agreement to so act shall be

filed by the applicant with the application for a license.

The court clerk of each county shall maintain an alphabetical

list of all transient merchants in the county and the names and

addresses of their agents.

If any transient merchant doing business or having done business

in any county within the state shall fail to have or maintain an

agent in the county or if such agent cannot be found at his

permanent address, the court clerk shall be an agent of such

transient merchant for service of all process, notices, or demands.

Service on the court clerk shall be made by delivery to and leaving

with him or any person designated by the clerk to receive such

service, duplicate copies of the process, notice, or demand. When

any such process, notice, or demand is served on the clerk, he shall

immediately cause one copy thereof to be forwarded by registered or

certified mail, return receipt requested, to the permanent address

of the transient merchant. The provisions of this section shall not

limit or otherwise affect the right of any person to serve any

process, notice, or demand in any other manner now or hereafter

authorized by law.