The County Clerk after consideration of the application, information obtained relative thereto, and payment of the fee prescribed in Section 7–6‑10 hereof, shall issue a registration certificate card to applicant, or may deny the application. The County Clerk may upon reviewing an application provide the Sheriff a copy of same who shall investigate the business character of the applicant and submit a report to the County Clerk within ten (10) days of receipt. Any certificate of registration issued hereunder may be revoked by the County Clerk, if the certificate holder is convicted of a violation of any provision of this Chapter or any other ordinance of this County, or of any State or Federal law, or has made a false material statement in his application. To revoke a certificate, the County Clerk shall mail by certified or registered mail to certificate holder’s last address shown in his or her application a letter stating certificate is revoked and reasons therefore. The date of mailing of this notice shall determine the date that the certificate is null and void.