|
US4290836A
|
|
Method of making composite pipe having an integral bell end
|
|
US4274749A
|
|
Polymer dispersion device
|
|
US4243075A
|
|
Composite pipe
|
|
US4240470A
|
|
Composite pipe having an integral bell end
|
|
US4083661A
|
|
Pneumatic sewage ejector
|
|
US4014556A
|
|
Sealing ring means for pipe couplings
|
|
US3929538A
|
|
Method of assembling a thermoplastic sleeve onto a pipe or the like
|
|
GB1411652A
|
|
Butterfly valve
|
|
US3782683A
|
|
Pipe couplings
|
|
US3848904A
|
|
Pipe having coupling means
|
|
US3802673A
|
|
Stabilized floating aeration system
|
|
US3804056A
|
|
Valve indicator post
|
|
US3846517A
|
|
Stabilization system for a floating water aerator
|
|
US3774880A
|
|
Butterfly valve body
|
|
US3726505A
|
|
Butterfly valve with shim seat adjustment
|
|
US3744753A
|
|
Seat adjustment for butterfly valve
|
|
US3698744A
|
|
Axially locked pipe joint
|
|
US3390890A
|
|
Push-joint and gasket for cast pipe
|
