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GB318546A
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Improvements relating to the opening and closing of cylinders or capsules for compressed or liquefied gas
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GB204715A
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Improvements in or relating to the closure of cylinders for compressed or liquified gases
|
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US1632447A
|
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Device for closing compressed or liquid gas cylinders
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GB196580A
|
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Improvements in devices for closing compressed or liquid gas cylinders
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GB161926A
|
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Closing device for receptacles for compressed or liquefied gases
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GB150688A
|
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Device for closing receptacles for compressed or liquefied gases
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GB191402513A
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Improvements in Pressure Reducing Valves for Gas.
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