|
GB409548A
|
|
Improvements in or relating to the manufacture of test sheets of paper
|
|
GB316151A
|
|
Improvements in or relating to bleaching or otherwise treating fibrous material
|
|
GB271938A
|
|
Improvements in and relating to means for extracting fibres from the stalks of flax, hemp and like plants
|
|
DE452482C
|
|
Cleaning machine for bast fibers
|
|
GB239722A
|
|
Improvements in or relating to the production of cottonized fibers
|
|
GB156709A
|
|
Improved manufacture of cotton substitutes
|
