California Code, Penal Code - PEN § 640a

1. Any person who shall knowingly and wilfully operate, or cause to be operated, or who shall attempt to operate, or attempt to cause to be operated, any automatic vending machine, slot machine or other receptacle designed to receive lawful coin of the United States of America in connection with the sale, use or enjoyment of property or service, by means of a slug or any false, counterfeited, mutilated, sweated or foreign coin, or by any means, method, trick or device whatsoever not lawfully authorized by the owner, lessee or licensee of such machine or receptacle, or who shall take, obtain or receive from or in connection with any automatic vending machine, slot machine or other receptacle designed to receive lawful coin of the United States of America in connection with the sale, use or enjoyment of property or service, any goods, wares, merchandise, gas, electric current, article of value, or the use or enjoyment of any musical instrument, phonograph or other property, without depositing in and surrendering to such machine or receptacle lawful coin of the United States of America to the amount required therefor by the owner, lessee or licensee of such machine or receptacle shall be guilty of a misdemeanor.

2. Any person who, with intent to cheat or defraud the owner, lessee, licensee or other person entitled to the contents of any automatic vending machine, slot machine or other receptacle, depository or contrivance designed to receive lawful coin of the United States of America in connection with the sale, use or enjoyment of property or service, or who, knowing or having cause to believe that the same is intended for unlawful use, shall manufacture for sale, or sell or give away any slug, device or substance whatsoever intended or calculated to be placed or deposited in any such automatic vending machine, slot machine or other such receptacle, depository or contrivance, shall be guilty of a misdemeanor.