www.5-11clubchicago.org/images/Box_52_Boston.pdf
somerville fire chief proposed a mutual aid organization around 1897
radio channel 154.22 was implemented around 1964
metrofire was incorporated in 2003
I wonder when Boston FD connected their telegraph circuits to the
adjacent FDs? 1900 maybe ??? that maybe was the real genesis of
MetroFire with mutual aid automatically responding on 'line boxes' and
'extra alarms' aka 'greater alarms' aka 'multi alarms'
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