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Pipe coupling
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Patent number 11,181,214
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Issue date Nov 23, 2021
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PHILMAC PTY LTD
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Geoffrey B. Puckett
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Rotational valve assembly
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Patent number D708706
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Issue date Jul 8, 2014
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Philmac Pty Ltd
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Malcolm Pridham
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D23 - Environmental heating and cooling
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Collet for pipe coupling
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Patent number 7,455,328
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Issue date Nov 25, 2008
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David Chelchowski
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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O-ring
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Patent number D558037
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Issue date Dec 25, 2007
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Philmac Pty Ltd
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David Chelchowski
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D08 - Tools and hardware
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Pipe coupling
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Patent number 7,270,351
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Issue date Sep 18, 2007
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David Chelchowski
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Nut and tail assembly
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Patent number 7,178,838
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Issue date Feb 20, 2007
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Philmac Pty Ltd
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David Chelchowski
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Pipe coupling
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Patent number 6,974,162
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Issue date Dec 13, 2005
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David Chelchowski
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Coupling device for polymeric pipes
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Patent number 6,702,336
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Issue date Mar 9, 2004
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David Chelchowski
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...