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FR2289681A1
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Thin-walled synthetic irrigation pipe - has transverse corrugations and outlet holes opposite hollow wall projections forming pipe guide
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DE2525114A1
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Watering system for artificial plant gardens - consists of perforated pipes in water accumulating layer with electrical water sensitive element
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DE2524289A1
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Perforated plastic irrigation pipe - consists of corrugated inner tube enclosed in casing pipe so that holes alternate between them
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DE2514241A1
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PLASTIC INSTALLATION CHANNEL
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US3994646A
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Apparatus for producing double-walled tubes of plastic material
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FR2259188A1
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Sealing and drainage walls for e.g. basement - has hollow blocks with inner partitions and interlocking ends
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ATA57775A
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Device for producing a double-walled tube made of thermoplastic plastic
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DE2502736A1
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DEVICE FOR THE MANUFACTURING OF PLASTIC PIPES
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NL7500649A
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Apparatus for perforating a thin-walled plastic tube with peripheral corrugations.
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DE2501044A1
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DEVICE FOR MANUFACTURING THERMOPLASTIC PLASTIC PIPES
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DE2461214A1
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DEVICE FOR THE MANUFACTURING OF PLASTIC PIPES
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DE2459642A1
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Thermoplastic material seepage pipe - has horse shoe roof section and wave type sides with reinforcement ribs
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DE2424640A1
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METHOD AND DEVICE FOR MANUFACTURING DRAENAGE TUBES FROM PLASTIC
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DE2409020A1
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Thin-walled plastic corrugated, perforated drain pipes prodn. - by maaking holes -crrrorugations in pipe while stilll plastically deforme
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DE2403618A1
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DEVICE FOR PRODUCING A DOUBLE-WALLED PLASTIC PIPE
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DE2261530A1
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INSULATING TUBE MADE OF PLASTIC
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US3837364A
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Flexible sheath for tachometer shafts or the like
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ES405290A3
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A procedure for manufacturing a plastic tube. (Machine-translation by Google Translate, not legally binding)
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CA949760A
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Drain pipe
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US3820340A
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Corrugated plastic pipe and drainage system using the same
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