Tryton application platform - sale product customer module

 Tryton is a high-level general purpose application platform. It is the base
 of a complete business solution as well as a comprehensive health and hospital
 information system (GNUHealth).
 .
 The sale_product_customer module defines customer's names and
 codes for products and/or variants.
 .
 A reference to the customer's product is added to the sale line.
 .
 Product Customer
 ****************
 .
  - Party: The customer.
  - Name: The customer's product name.
  - Code: The customer's product code.