1985 - Volume #9, Issue #5, Page #25
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Electric Gate Trigger
Getting on and off tractors to open and close gates is no longer a problem for Phillip MacDonald, Galatea, New Zealand, inventor of a "triggered" farm gate mechanism that opens the gate at the touch of a bumper - and closes it again when a pre-set amount of time has passed.
The sloping V-shaped trigger mounts at..........


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1985 - Volume #9, Issue #5