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US6079695A
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Butterfly valve construction
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US5707040A
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Replaceable seal members for butterfly valve
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US5417405A
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Obturator for ball valve
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CA2094662A1
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Spring loaded injectable packing fitting
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US5294090A
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Valve snubber
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US5263685A
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Valve seat
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US3512546A
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Block and bleed valve seat
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US3473554A
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Grooved valve seat for block and bleed valves
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US3515371A
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Valve and valve seat
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US3367365A
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Valve
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US3267568A
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Apparatus for hydraulically removing and replacing interference fitted parts and the like
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US3207468A
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Valve or the like having a pressure fluid actuated transducer
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US3119594A
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Swing gate valve
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US3131906A
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Valve seat
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US3039734A
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Gate valves
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US2719022A
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Valves
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US2690894A
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Valve operating mechanism
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US2516947A
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Valve seat
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