4. Plastic and nonmetallic article shaping or treating: processes
  5. Treatment of material by vibrating, jarring, or agitating...
  6. By reciprocating or vibrating mold

Hartzell H. Schmidgall

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Apparatus for lining pipe

Plastic article or earthenware shaping or treating: apparatus – Distinct means to feed – support or manipulate preform stock... – And means to form or reshape preform
Patent

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Automated system for handling and cleaning concrete pipe-making

Plastic article or earthenware shaping or treating: apparatus – With separate apparatus cleaning means – Coacting with forming means or dough divider type trap chamber
Patent

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Concrete pipe making machine

Plastic article or earthenware shaping or treating: apparatus – With apparatus assembly or dismantling means or with idle part – Plural wear or shaping surfaces mounted for alternative use
Patent

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Method for lining pipe

Plastic and nonmetallic article shaping or treating: processes – Treatment of material by vibrating – jarring – or agitating... – By reciprocating or vibrating mold
Patent

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Spacer for reinforced concrete structures

Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Spacer-positioner; e.g. – rebar chair
Patent

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Profile ID: LFUS-PAI-P-853058

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