Composite power generator assembly which has a simple structure and can be conveniently operated
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Mechanical power generation device capable of generating electricity via simple structure and convenient operation
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Mechanical power generation device utilizing simple mechanical structure for power generation in convenient operation
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Mechanical power generation device which has a simple structure and can be easily operated
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Dual bar power generation device comprising a first lever having an end connected to a dynamo and a second lever mounted on the first lever and driven by a motor to swing so as to cause the first lever to swing
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Two rod type power generating device capable of pulling a first lever and a second lever to swing to drive a power generator to generate power
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Power generation device employing lever swinging to generate power
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Power generation device for generating power with a simple structure, an easy operation and a low cost
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Mechanical power generation device driving a power generation device for power generation after rotation of a turntable
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Power generation device capable of generating power with simple structure, convenient operation and low cost
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Power generation device which has the advantages of simple structure, easy operation and low cost
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Edible container and manufacturing method thereof can have simple production, fast speed and low costs
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Vehicle wheel structure greatly reducing the thickness of tires and also achieving a purpose of environmental protection
