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Show DEVICE FOR KILLING PESTS California Man Hits Upon Apparatus for Extermination of Rodents While In Their Nests. An entirely new device for killing rodents seems to have been hit upon by a California man, in that It is used on the pests In their nests. A large tank contains a chemical which is forced out through a flexible tube by means of an air pump. With the tube extending into the hole, the push button but-ton on top of the cylinder is pressed. : pr Rodent Exterminator. says the Popular Electricity. This completes the circuit of the battery and coll, placed underneath the cylinder, cylin-der, causing a spark to occur at the nozzle tip exploding the mixture as It passes out of the tube and forming a gas designed to kill the rodents. |