L-47

AcronymDefinition
L-47Teaching Reactor (#1) at Atomics International
References in periodicals archive ?
A sure sign that L-47 had become an anachronism was the 500-foot observation tower on the eastern hill.
The greatest challenge was that L-47 was built from materials altogether different from those of my previous residences.
Firing range is increased by replacing the existing cannon with the Swiss-developed L-47 cannon.