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US4383379A
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Machine for drying and mixing granular materials
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US4262429A
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Method of and apparatus for drying materials
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US4175335A
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Machine for drying granular materials
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ES349607A1
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Procedure and apparatus for mixing dried granulated materials. (Machine-translation by Google Translate, not legally binding)
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US2800337A
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Safety device for hand trucks
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US2530501A
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Apparatus for proportioning and mixing materials
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US2432368A
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Hand truck
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US2179485A
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Means for uniform packaging of mixtures
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US1761063A
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Container for transporting and mixing concrete
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US1778348A
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Concrete-transporting vehicle
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CA505248A
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Apparatus for mixing and packaging uniformly measured quantities of separate bulk materials
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