Breaker Strip,Fre Mullion SVCE (650, 550)
   650    Use Prior to Serial #1810000.
   550    Use Starting With #1004775 And Between
          #M964070-M964469 And Between
          #M984750-M985149.
          Prior to #M/P1004775 Except Between
          #M964070-M964469 And Except Between
          #M984750-M985149 See 7021990.