OT Supermarket Trolleys
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On 24 Mar, 20:49, "mark" wrote:
The warning says something like: Will come to a Sudden Stop at the Red
Line.
How does that work?
mark
Inductance loop buried in the ground at red line.Puts the brakes on.
Assuming you`re talking about shopping trolleys but just forgot to
mention it?
Thanks for that.
I thought shopping trolleys were things pulled along by old ladies, often
finished in a tartan effect.
mark
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