nota_print_conformidad/views/conformidad_print.xml

<?xml version="1.0" encoding="UTF-8"?>
<openerp>
	<data>
        <record id="views_presupuesto_print" model="ir.ui.view">
            <field name="name">nota.conformidad.print</field>
            <field name="model">project.service.task</field>
            <field name="inherit_id" ref="eiru_service.project_service_task_form"/>
            <field name="arch" type="xml">
                <xpath expr="//div[@class='oe_right oe_button_box']" position="inside">
					<div class="conformidad_button_box oe_right oe_button_box" id="conformidad_button_container"></div>
				</xpath>
            </field>
        </record>
	</data>
</openerp>