++++ 1 . REQUEST FOR A PRELIMINARY RULING - EFFECTS OF A NATIONAL LAW AS AGAINST COMMUNITY LAW - POWERS OF THE COURT - LIMITS ( EEC TREATY, ARTICLE 177 ) 2 . SOCIAL SECURITY FOR MIGRANT WORKERS - SYSTEMS OF SOCIAL SECURITY AND OF SOCIAL ASSISTANCE - DISTINCTION - INVALIDITY PENSION - SUPPLEMENTARY ALLOWANCE - BENEFIT WITHIN THE MEANING OF ARTICLE 1 ( S ) OF REGULATION NO 3 - PERSON ENTITLED - TRANSFER OF RESIDENCE TO ANOTHER MEMBER STATE - ENTITLEMENT TO CONTINUED PAYMENT OF ALLOWANCE ( REGULATION NO 3, ARTICLE 1 ( B ), ARTICLE 1 ( C ), ARTICLE 3, ARTICLE 10 ( 1 ))