partner-contact/partner_relations_in_tab/view/res_partner_relation_type.xml

<?xml version="1.0" encoding="UTF-8"?>
<openerp>
    <data>
        <record id="form_res_partner_relation_type" model="ir.ui.view">
            <field name="model">res.partner.relation.type</field>
            <field name="type">form</field>
            <field name="inherit_id" ref="partner_relations.form_res_partner_relation_type" />
            <field name="arch" type="xml">
                <data>
                    <field name="partner_category_left" position="after">
                        <field name="own_tab_left" />
                    </field>
                    <field name="partner_category_right" position="after">
                        <field name="own_tab_right" />
                    </field>
                 </data>
            </field>
        </record>
    </data>
</openerp>