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GB559990A
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Method and apparatus for shaping metallic or non-metallic stock
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GB498076A
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Improvements in or relating to apparatus for drawing seamless metal tubing
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US2139539A
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Plug for drawing tubes
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GB494942A
|
|
Improvements in or relating to presses for extruding metal
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GB494941A
|
|
Improvements in or relating to presses for extruding metal
|
|
US2139551A
|
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Extrusion press
|
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US2183182A
|
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Centering device for extruding presses
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US1960453A
|
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Apparatus for bright annealing tubes
|
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US1931935A
|
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System of cooling and heating oil
|
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US1909005A
|
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Method of making corrugated wall tubing
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US1865575A
|
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Apparatus for manufacturing integral finned tubing
|
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US1789591A
|
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Heat-exchange apparatus
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US1757989A
|
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Cooking receptacle
|
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US1761733A
|
|
Integral finned tubing and method of manufacturing the same
|
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US1634110A
|
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Radiating device
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CA383133A
|
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Tube drawing plug
|
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CA290218A
|
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Tubing manufacture
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