4. Metal working
  5. Method of mechanical manufacture
  6. Assembling or joining

John Ditcher

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Apparatus for forming steps in manholes and the like

Static structures (e.g. – buildings) – Assembled in situ-type anchor or tie
Patent

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Gasket seal between sewer pipe and manhole opening

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent

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Gasket seal between sewer pipe and manhole opening

Metal working – Method of mechanical manufacture – Assembling or joining
Patent

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Gasket suitable for use in sealing exterior of sewer pipe to ope

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent

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Joint assembly for vertically aligned sectionalized manhole stru

Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent

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Profile ID: LFUS-PAI-P-748075

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