4. Pipe joints or couplings
  5. Convertible

Toshio Toshima

Inventor

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Pipe having ridge on spigot and method of forming the ridge

Pipes and tubular conduits – Combined – With end structure
Patent

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Pipe joint with earthquake-proof function

Pipe joints or couplings – Flexible joint – rigid members – Socketed packing type
Reexamination Certificate

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Separation preventive pipe joint

Pipe joints or couplings – Convertible
Patent

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Separation-preventive pipe joint

Pipe joints or couplings – With assembly means or feature – Particular tool-engaging means or with tool
Patent

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Profile ID: LFUS-PAI-P-665442

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