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Samples in periodicals archive:
The WALTHAM ETC highlights a central chronograph function with second hand and 60 minute elapsed time indicator similar to the iconic Type-A13a model used on board the F4 Phantoms of the 1960's and the legendary Top Gun fighter weapons school.
In addition, they manufacture a line of mil-spec elapsed time indicators and fault indicators, as well as Electronic Safe and Arm Devices for missile programs.
a subsidiary of L-3 Communications based in Rolling Meadows, IL, provides safe and arm devices, airborne and locomotive data recorders, elapsed time indicators and fault indicators to military prime customers and the locomotive industry.