When I attempt to add a field to the CRM module it is not showing on the page.

XML, as seen on odoo:

Result on the page:

view.xml

<openerp>
    <data>
        <record model="ir.ui.view">            
            <field name="name">module_crm.module_crm</field>
            <field name="model">module_crm.module_crm</field>           
            <field name="inherit_id" ref="base.view_partner_form"/>
            <field name="arch" type="xml">
                <xpath expr="//notebook/page[@string="Internal Notes"]" position="after">
                    <page string="Subsidiaries">
                        <field name="test123"/>                    
                    </page>                
                </xpath>            
            </field>        
        </record>    
    </data>
</openerp>

models.py

from openerp import models, fields, api
class module_crm(models.Model):
     _name = 'module_crm.module_crm'
     _inherit = 'res.partner'    
     test123 = fields.Char("test123", invisible=False)