• 

  MITCHELL INTRUMENTS

• 

  MKS INSTRUMENTS

• 

  OHMIC INSTRUMENTS CO

• 

  QUANTEK INSTRUMENTS

• 

  SCHONSTEDT INSTRUMENT CO

• 

  WESTEC INSTRUMENTS

• 

  Thompson Surgical Instruments, Inc.

• 

  VP Instruments

• 

  Dentaurum

• 

  Pentagon Instruments