Cal. Penal Code § 330c

A punchboard as hereinafter defined is hereby declared to be a slot machine or device within the meaning of Section 330b of this code and shall be subject to the provisions thereof. For the purposes of this section, a punchboard is any card, board or other device which may be played or operated by pulling, pressing, punching out or otherwise removing any slip, tab, paper or other substance therefrom to disclose any concealed number, name or symbol.