Revision History for USGS Open File Report 76-252

  Jerry P. Eaton

  15/16 ips Operation of the Precision Instrument Company 
  Model Pl5100 Tape Recorder to Record the Standard (30 Hz) 
  NCER Seismic Data Multiplex System

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  Posted online at http://pubs.usgs.gov/of/1976/0252/
  June 6, 2012

  Initial release in paper form
  1976

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