[Sidenote:  Conditions on use of German patents and copyrights.]

Rights as to industrial, literary, and artistic property are re-established.  The special war measures of the allied and associated powers are ratified and the right reserved to impose conditions on the use of German patents and copyrights when in the public interest.  Except as between the United States and Germany, pre-war licenses and rights to sue for infringements committed during the war are cancelled.

SECTION XI

AERIAL NAVIGATION

[Sidenote:  Allied aircraft in German territory.]

Aircraft of the allied and associated powers shall have full liberty of passage and landing over and in German territory, equal treatment with German planes as to use of German airdromes, and with most favored nation planes as to internal commercial traffic in Germany.  Germany agrees to accept allied certificates of nationality, airworthiness, or competency or licenses and to apply the convention relative to aerial navigation concluded between the allied and associated powers to her own aircraft over her own territory.  These rules apply until 1923, unless Germany has since been admitted to the League of Nations or to the above convention.

SECTION XII.

FREEDOM OF TRANSIT.

[Sidenote:  Germany may not discriminate against allied or associated powers.]

Germany must grant freedom of transit through her territories by mail or water to persons, goods, ships, carriages, and mails from or to any of the allied or associated powers, without customs or transit duties, undue delays, restrictions, or discriminations based on nationality, means of transport, or place of entry or departure.  Goods in transit shall be assured all possible speed of journey, especially perishable goods.  Germany may not divert traffic from its normal course in favor of her own transport routes or maintain “control stations” in connection with transmigration traffic.  She may not establish any tax discrimination against the ports of allied or associated powers; must grant the latter’s seaports all factors and reduced tariffs granted her own or other nationals, and afford the allied and associated powers equal rights with those of her own nationals in her ports and waterways, save that she is free to open or close her maritime coasting trade.

FREE ZONES IN PORTS

[Sidenote:  Existing free zones to be maintained.]

Free zones existing in German ports on August 1, 1914, must be maintained with due facilities as to warehouses, packing, and shipping, without discrimination, and without charges except for expenses of administration and use.  Goods leaving the free zones for consumption in Germany and goods brought into the free zones from Germany shall be subject to the ordinary import and export taxes.