All notices and other writings authorized or deemed to have been given and served when deposited in the United States mail, postage prepaid, and addressed, with respect to a licensee to any office maintained by the licensee within the county and the cities, and with respect to other parties to the last known address of such party.
Any notice or other writing authorized or required by the provisions of this chapter to be "filed", shall be deemed "filed" when received in the business office of the party with whom such notice or writing is authorized or required to be "filed". (Prior code § 20.11.1020)