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A method of forming tapered channels for scissors jack
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Failure modes for a jack
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Pawl mechanism for horizontal type lifting jacks
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Horizontal type lifting jacks with supporting leg structure
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Jack chain
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Vehicle jack structure with adjustable effective length chain type lift means
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Method of forming a rigid steel rack bar for automobile jacks
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Horizontal type lifting jacks
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Vehicle lifting jacks
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Vehicle jack structure with adjustable effective length lift means
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