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Template for the manufacture of flat articles from thin sheets of rubber
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Pressing and cutting template for the production of articles composed of crude rubber sheets
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Inflatable hollow articles composed of flat rubber sheets
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Closure means for inflatable hollow rubber bodies
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Production of hollow inflatable sheet rubber bodies
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Process of producing inflatable hollow rubber bodies
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Pressing and cutting template for producing articles of crude rubber sheets
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Process of producing inflatable bodies without using moulds
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Manufacture of flat articles from thin sheets of rubber
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