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US3705707A
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Self-aligning trunnion ball valve
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US3617027A
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Rocking seat valve
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US3636972A
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Jacketed valve
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US3666233A
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Butterfly valve assembly having split body
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US3675677A
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Disc valve with molded-in-place liner and replaceable seat
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US3675888A
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Apparatus for molding a seat in a valve body
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US3603341A
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Lined disc valve and mold for forming the lining
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US3642247A
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Disc valve assembly with rock-in valve member
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US3627258A
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Plug-type valve assembly
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US3589675A
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Rotary valve assembly with insertable valve unit
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US3666234A
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Spherical disc valve assembly
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US3601360A
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Disc valve assembly with tilt in valve member
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US3601359A
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Disc valve assembly with replaceable disc and seats
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US3601364A
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Disc valve assembly with insertable valve member and seats
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US3596876A
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Disc valve with upstream and downstream seats
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US3593960A
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Disc valve with upstream and downstream seats
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US3521666A
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Reciprocating valve assembly
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US3599932A
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Between flange journaled ball valve assembly
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US3531082A
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Butterfly valve assembly
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US3567258A
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Seal assembly
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