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CH586815A5
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Plastics spacer for concrete reinforcing bars - has extruded solid hub and equispaced helical arms allowing section area variations
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ES285873A1
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Graduable distancer for a superior armor network in concrete floors or coverings (Machine-translation by Google Translate, not legally binding)
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ES277493A1
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Spacing device for armored iron in armed concrete and similar concrete constructions (Machine-translation by Google Translate, not legally binding)
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CA697841A
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Spacing support for reinforcing bars
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CA745399A
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Spacer bar for concrete re-inforcing irons
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