Hope this may be of help/interest
http://en.allexperts.com/e/f/fo/fokker_d.vii.htm
http://en.allexperts.com/e/p/po/polish-soviet_war.htm
Postwar, the D.VII saw extensive use in the United States, where 142 captured examples were evaulated. The D.VII also served in the Polish (around 50), Dutch, Swiss, and Belgian air forces.
It was the most numerous Polish fighter of the Polish-Soviet War. The D.VII proved to be so popular that Fokker completed and sold a large number of D.VII airframes that he had smuggled into the Netherlands after the Armistice. As late as 1929, the Alfred Comte company manufactured eight new D.VII fighters under licence for the Swiss
Fliegertruppe.
Kind regards
Ross