California Code
TITLE 2 - MANNER OF CREATING CONTRACTS
Section 1631.

1631. Every person in this State who sells machinery used or to be used for mining purposes shall, at the time of sale, give to the buyer a bill of sale for the machinery. The seller shall keep a written record of the sale, giving the date thereof, describing the machinery, and showing the name and address of the buyer, and the buyer, if in this State, shall keep a record of his purchase, giving the name and address of the seller, describing the machinery, and showing the date of the purchase.

(Added by Stats. 1959, Ch. 222.)