It shall be unlawful for any person, firm or corporation to establish or maintain a laundry for cleaning or sterilizing wiping rags or soiled clothes or rags or soiled and disused or cast-off clothing, garments, underclothing, bedclothes, bedding or parts thereof, within the limits of the City and County of San Francisco, without having first complied with Section 354 of Article 7 hereof, regulating the conducting of public laundries and obtain a permit therefor as required by Section 695 of this Article. No person, firm or corporation shall engage in the business of laundering, cleaning or sterilizing cloths or material for wiping rags, or selling wiping rags without a permit therefor from the Department of Public Health. Such permit shall be granted as a matter of course on the first application, and may be revoked by the Department of Public Health for violation by the holder of any of the provisions of Section 694 of this Article. Subsequent permits to a person, firm or corporation in place of a permit revoked may be granted or refused at the discretion of the Department. The Department of Public Health shall keep a register of all persons engaged in laundering, cleaning, sterilizing or selling wiping rags, and shall enter therein the place of business, the date of issue and the revocation of permit.