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1. A lever-operated latch device comprising an assembly of a case body 10, an actuation body 20 mounted on the case body 10, a linking member 30 and a slide body 40, the actuation body 20 having a free end 21 and an opposing pivoted end 22, and an intermediate portion extending between the free and pivoted ends of the actuation body 20, the pivoted end 22 being pivotally connected with the case body 10 in cooperation with elastic members 50 positioned at the pivoted end 22 to extend between the actuation body 20 and the case body 10, whereby the actuation body 20 being operable to swing, the free end 21 of the actuation body 20 being formed with two protruding arms 25 and an opening section 26 positioned between the two protruding arms 25, an operation section 80 being disposed in the opening section 26, wherein the elastic members 50 are disposed in spaced relationship with respect to both the intermediate portion of the actuation body 20 and the operation section 80, the linking member 30 having a freely rotatable first end 31 and a second end 32 connected with the slide body 40, the first end 31 being pivotally connected with at least one of the free end 21 of the actuation body 20 and the operation section 80, wherein the operation section 80 includes a press end 81 for an operator to operate and an assembled end 82, wherein the press end 81 of the operation section 80 is directed to the pivoted end 22 of the actuation body 20, and wherein the assembled end 82 of the operation section 80 is pivotally connected with the linking member 30, wherein a spring 55 has a coiled section 56 and a first section 54 and a second section 58 connected with the coiled section 56, the first section 54 of the spring 55 abutting against the linking member 30, while the second section 58 of the spring 55 abutting against the assembled end 82 of the operation section 80, whereby the first end 31 of the linking member 30 is pivotally connected with the assembled end 82 of the operation section 80 and the free end 21 of the actuation body 20, the second end 32 of the linking member 30 being formed with a pivoted section 33 for pivotally connecting with a shaft rod 73, whereby the second end 32 of the linking member 30 is freely rotatable, whereby, when the operator presses the operation section 80, the actuation body 20 is moveable from a closed position to an opened position to thereby drive the linking member 30 and the slide body 40 to move.
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