|
US3355022A
|
|
Filtering apparatus
|
|
US3210017A
|
|
Classifying and comminuting apparatus
|
|
US3209914A
|
|
Screen and rake combination for removing solids from liquids
|
|
US2946378A
|
|
Curtain support
|
|
US2912266A
|
|
Valve stem seal
|
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US3039780A
|
|
Seal for use between relatively movable members
|
|
US2930485A
|
|
Trash rack
|
|
US2918171A
|
|
Transfer and comminuting device
|
|
US2866555A
|
|
Cylinder level control for comminuting devices and method for comminuting
|
|
US2978106A
|
|
Rag catcher
|
|
US2727627A
|
|
Tensioning device
|
|
US2650810A
|
|
Means for raising and lowering diffuser tubes
|
|
US2614695A
|
|
Rotary screen comminuting device
|
|
US2559894A
|
|
Shower head
|
|
US2649251A
|
|
Winding machine
|
|
US2555201A
|
|
Diffuser tube
|
|
US2478051A
|
|
Hydraulic air compressor
|
|
US2467150A
|
|
Valve
|
|
US2374772A
|
|
Apparatus for aerating sewage
|
|
US2303949A
|
|
Conduit bend
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