account_timbrado/account.py

# -*- coding: utf-8 -*-
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# For copyright and license notices, see __openerp__.py file in module root
# directory
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from openerp import models, fields


class AccountJournal(models.Model):
    _inherit = 'account.journal'

    timbrado = fields.Char('Timbrado', size=8)

class AccountIinvoice(models.Model):
    _inherit = 'account.invoice'

    timbrado = fields.Char('Nº de timbrado del proveedor', size=8)