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PL368479A3
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Water trap for equipment in water supply systems
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Anti-syphon trap for water systems
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Composition of a mixture of finely grained iron-and carbon-bearing waste materials used as a constituent of steel smelting charges
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PL330337A1
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Drain trap
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PL302886A1
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Pipe union for water drainage systems
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PL302863A1
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Expansion joints for pipelines
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PL300718A1
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Drain trap for water drainage systems hydraulic appliances
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PL292440A1
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Drain trap for sanitary facilities
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PL292284A1
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Roasting spit
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PL292285A1
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Apparatus for flushing lavatory bowls
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PL281571A1
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Drain trap for sanitaary appaliances
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