Water aeration apparatus, consists of an aeration unit suspended from a floating element, an air supply line and a weight
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Perforated hose, e.g. for aeration of sewage, comprises a stiffening element along its longitudinal axis at an unperforated wall section, for the delivery of large volumes of air without floating
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Apparatus for aerating water comprises support with plate of elastomer with fine slits on it, pressed together using clamp(s)
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Toy for animals, has core of polymeric material with covering of polymeric material softer than core polymeric material
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Aerating system for liquids, and especially waste water for treating sewage, has an elastic bush at mounting of aerating element at distribution pipe to compensate for flow forces
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Bracket for a ventilation system
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Aeration rotor for waste- and potable waters, comprises holder with circumferentially-distributed edge penetrations and plate projections passing through them
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Coupling between two co-axially disposed elements has outer ring on one element inside of which is co-axially located elastically resilient force transmission component engaging by protrusions in slots on inner side of outer ring
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Device for cleaning skittles for skittles and bowling
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Skittles for skittles and bowling
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Aerator for feeding large and small diameter air bubbles into waste water has elastomeric sleeve with slits, through which air emerges, on support with rectangular cross-section, larger sides of rectangle being very much larger than shorter
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Housing for electrical components
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Device for the detachable fastening of ventilation devices in systems for aerating water
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Apparatus for aerating water
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Device for the detachable fastening of ventilation devices in systems for aerating water
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Device for aerating water
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Process for the production of rubber-metal components
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Making tubular- or panel water aerators from rubbery materials which are finely-slitted, is carried out continuously using slitting tool in relative movement on circular path aligned with movement of material
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Water aerator made of elastic material that can be withdrawn through its retainers to allow replacement in full tank
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Anchorage point for hose end bearing pressurized fluid enclosed in mantle
