4. Hydraulic and earth engineering
  5. Drainage or irrigation
  6. Porous or apertured pipe, flume, or tileway

Carmelo Giuffré

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Irrigation pipe

Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway
Reexamination Certificate

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Pipe fitting element particularly for plastic pipes

Pipe joints or couplings – Nonmetal to metal – Internal member
Reexamination Certificate

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Self-compensating drip irrigation emitter

Fluid sprinkling – spraying – and diffusing – Conduit or nozzle attached irrigation-type decelerator
Reexamination Certificate

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Threaded connection device for pipes

Pipe joints or couplings – With assembly means or feature – Handle or handwheel for rotary engagement
Patent

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Profile ID: LFUS-PAI-P-2395096

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