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IE21140L
|
|
Lathes
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IE21139L
|
|
Elastic coupling device
|
|
GB754682A
|
|
Improvements in methods and machines for machining helicoid-shaped surfaces on workpieces
|
|
GB750678A
|
|
Improvements in elastic coupling devices
|
|
DE1054907B
|
|
Conveyor with pumping action for the delivery of particulate, dry material
|
|
DE818454C
|
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Screw pump, engine or compressor
|
|
GB679163A
|
|
Improved gear mechanism suitable for use as a pump, compressor or motor
|
|
US2189868A
|
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Apparatus for forming external threads in a workpiece
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|
US2189867A
|
|
Method of and apparatus for forming internal threads in a workpiece
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|
CA529468A
|
|
Pumps
|
