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Process for preparing an elastic-plastic body
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Manufacture of elastic-plastic material
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Improvements in the manufacture of caoutchouc-like masses
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Improvements in the manufacture of factice and the like
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Manufacture of caoutchouc-like bodies
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Process in the manufacture of wax like bodies
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Process for the production of a wax-like body
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Manufacture of an elastic caoutchouc-like body
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Process for making an elastic caoutchouc-like body
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Process for making an elastic caoutchouc like body
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Device for testing electric safety fuses
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