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US6598850B2
|
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Butterfly valve locking apparatus
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US6543747B2
|
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Valve actuator apparatus
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US5538029A
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Method for adjusting valve sealing engagement
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US5069240A
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Flexible seating structure for rotary valves
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US3934850A
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Adjustable valve seat
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US3958314A
|
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Seal for butterfly valves
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CA1008840A
|
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Seal for butterfly valves
|
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US3823912A
|
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Valve for installation in flume
|
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US3823913A
|
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Valve for installation in flume
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CA964634A
|
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Pressure seal for butterfly valves
|
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CA955574A
|
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Valve operator
|
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US3726503A
|
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Pressure seal for butterfly valves
|
|
US3717171A
|
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Light operated valve position indicating system
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US3745855A
|
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Emergency manual drive for valve operators
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US3693647A
|
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Positively oriented, adjustable length, buried valve operator and indicator support
|
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US3656504A
|
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Buried valve position indicator
|
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US3602254A
|
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Valve position indicating system
|
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US3575378A
|
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Valve operator mechanism
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US3540696A
|
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Valve seat structure
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US3544066A
|
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Valve seat structure
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