Article 158c

The Office shall transmit requests to register a change in ownership, a licence or a restriction of the holder's right of disposal, the amendment or cancellation of a licence or the removal of a restriction of the holder's right of disposal which have been filed with it to the International Bureau, if accompanied by appropriate proof of the transfer, licence, or the restriction of the right of disposal, or by proof that the licence no longer exists or that it has been amended, or that the restriction of the right of disposal has been removed.