anchor.diff:  Kinemetrics Inc.,FBA-ES-T,2260,SYZ,20,0,0,0,0,0,0,0,2006-05-05T00:20:00Z,9999-01-01T00:00:00Z
   Kinemetrics Inc.,FBA-ES-T,2261,PYZ,20,0,0,0,0,0,0,0,2007-05-01T01:00:00Z,9999-01-01T00:00:00Z
   Kinemetrics Inc.,FBA-ES-T,2262,WCZ,20,0,0,0,0,0,0,0,2009-10-16T00:00:12Z,2017-02-22T03:00:00Z
  -Kinemetrics Inc.,FBA-ES-T,2263,RIZ,20,0,0,0,0,0,0,0,2009-05-18T01:00:00Z,9999-01-01T00:00:00Z
  +Kinemetrics Inc.,FBA-ES-T,2263,RIZ,20,0,0,0,0,0,0,0,2009-05-18T01:00:00Z,2019-09-21T03:50:00Z
   Kinemetrics Inc.,FBA-ES-T,2264,WHZ,20,0,0,0,0,0,0,0,2006-05-06T02:30:34Z,2014-06-05T05:00:00Z
   Kinemetrics Inc.,FBA-ES-T,2264,CMWZ,20,0,0,0,0,0,0,0,2016-12-05T06:30:00Z,9999-01-01T00:00:00Z
   Kinemetrics Inc.,FBA-ES-T,2265,APZ,20,0,0,0,0,0,0,0,2006-05-07T03:23:54Z,9999-01-01T00:00:00Z
  
positive.code: Geospace Technologies Corporation,GS-11D seismometer,MRP012,RT09,10,0,0,0,0,0,0,0,2008-10-30T01:01:01Z,2012-02-02T00:00:00Z
  Geospace Technologies Corporation,GS-11D seismometer,MRP013,RT02,10,0,0,0,0,0,0,0,2008-10-10T00:00:10Z,2009-08-13T00:00:00Z
  Guralp Systems Ltd.,CMG-3ESP,T3137,AN03,10,0,0,0,0,0,0,0,1999-11-03T00:00:02Z,2000-01-22T00:00:00Z
  Guralp Systems Ltd.,CMG-3ESP,T33794,RIZ,10,0,0,0,0,0,0,0,2009-05-18T00:01:00Z,9999-01-01T00:00:00Z
  Guralp Systems Ltd.,CMG-3ESP,T33795,OPRZ,10,0,0,0,0,0,0,0,2007-06-19T03:05:00Z,2008-11-20T03:05:00Z
  Guralp Systems Ltd.,CMG-3ESP,T33795,LTZ,10,0,0,0,0,0,0,0,2010-02-09T01:03:00Z,9999-01-01T00:00:00Z
  Guralp Systems Ltd.,CMG-3ESP,T367,AN09,10,0,0,0,0,0,0,0,1999-12-07T00:00:02Z,2000-01-21T00:00:00Z
  
negative.code: Nanometrics Inc.,Trillium 120QA,2196,RTZ,10,0,0,0,0,0,0,0,2016-09-01T21:45:00Z,9999-01-01T00:00:00Z
  Nanometrics Inc.,Trillium 120QA,2432,GLKZ,10,0,0,0,0,0,0,0,2016-09-17T14:00:01Z,9999-01-01T00:00:00Z
  Nanometrics Inc.,Trillium 120QA,2434,WIZ,10,0,0,0,0,0,0,0,2016-09-13T01:50:00Z,9999-01-01T00:00:00Z
  Nanometrics Inc.,Trillium 120QA,2485,RIZ,20,0,0,0,0,0,0,0,2019-09-21T04:55:00Z,9999-01-01T00:00:00Z
  Nanometrics Inc.,Trillium 120QA,2490,TMVZ,10,0,0,0,0,0,0,0,2018-05-02T22:00:00Z,9999-01-01T00:00:00Z
  Nanometrics Inc.,Trillium 240,161,WEL,11,0,0,0,0,0,0,0,2014-07-25T00:05:00Z,2014-11-03T02:00:00Z
  Nanometrics Inc.,Trillium Compact 120,1909,WI01,10,0,0,0,0,0,0,0,2014-01-30T00:01:00Z,9999-01-01T00:00:00Z
  