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US4045153A
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Molding apparatus including one-piece flexible mold and means to restrict the deformation of the mold
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US3998422A
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Flexible mold having internal seams
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US4027845A
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Flexible mold including rigid encapsulated mandrel
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US3982721A
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Molding apparatus including a one-piece flexible mold deformable by fluid pressure differential
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US3980269A
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Molding apparatus including a one-piece flexible mold having male and female forming members
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US4027723A
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Molding apparatus including a flexible mold for making articles having radially inwardly extending projections on an interior surface
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US4093175A
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Distensible elastomeric molds
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US3841822A
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Seamless article molding apparatus
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ES411162A1
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Improvements in appliances for molding articles without seaming. (Machine-translation by Google Translate, not legally binding)
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US3776683A
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Apparatus for molding articles
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