| Back-up batteries and chargers - in a power outage one bank works the signals and the other bank works the gates |
| Date:
5/12/2006 |
Location:
Cumberland, RI Map  |
Views:
264 |
Collection Of:
 
Ron Chouinard |
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Author: Ron Chouinard
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| Picture Categories: |
This picture is part of album: Relay Shed |