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ES486726A3
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Process of manufacture of mattresses of springs (Machine-translation by Google Translate, not legally binding)
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CA1081927A
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Method for the manufacture of a spring-interior mattress and the mattress obtained
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FR2354285A1
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Metal sprung mattress mfr. - with frame placed in mould contg. foam plastics forming mixt. and spring ends held at fixed distance from base
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US4154786A
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Method for producing a mattress having embedded springs, the implements used and the mattress obtained
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FR2229194A5
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Method of forming walls of foam covered mattresses - edges are completed by foam filling tissue sealed cavity
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