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IE19718L
|
|
Paper or fabric tubes
|
|
IE20359L
|
|
Treating pipe surfaces
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GB716183A
|
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Method and apparatus for coating surfaces of helically grooved tubes of any length
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GB681672A
|
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Improvements in and relating to flexible tubes of paper or fabric
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DE850990C
|
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Method and device for producing flexible paper or fabric tubes
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DE856123C
|
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Process and device for treating the surface of helically grooved pipes of any length (hoses)
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CA529484A
|
|
Method and apparatus for the manufacture of flexible tubes
|
|
CA536602A
|
|
Method and apparatus for treating the surface of helically grooved tubes (flexible pipes) of any length
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