Recently, when working on a 17" Duo-Art rotary pump, I noticed a label
marked "VOVTOR" attached at the outside edge of one of the exhausters
(pictured).  Does anybody have a clue about its origin or significance?

John Grant

 [ http://www.mmdigest.com/Attachments/16/04/25/160425_134006_Vovtor%20Tag.jpg