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Probably not the kind that are a problem. Gasoline chainsaws use a magneto-spark ignition, which throws off a lot of RFI (radio freqency interference). I expect he cannot use a lawnmower either.
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James
The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994)
Red-beard for President, 2020
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