rma/crm_claim_rma/account_invoice_view.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>
        <!-- INHERITED VIEW FOR THE OBJECT : account_invoice -->

        <record id="invoice_form" model="ir.ui.view">
            <field name="name">crm_claim_rma.invoice_form</field>
            <field name="model">account.invoice</field>
            <field name="inherit_id" ref="account.invoice_form" />
            <field eval="16" name="priority"/>
            <field name="arch" type="xml">
                <data>
                    <xpath expr="/form/sheet/notebook/page[@string='Other Info']/group/group/field[@name='origin']" position="after">
                        <field name="claim_id" attrs="{'invisible':[('type','!=','out_refund')]}"/>
                    </xpath>
                </data>
            </field>
        </record>
    </data>
</openerp>