|
GB711440A
|
|
Improvements in and relating to differential d.c. amplifiers
|
|
GB657955A
|
|
Improvements in or relating to apparatus for measuring or recording the ph values ofsolutions
|
|
GB636212A
|
|
Improvements in or relating to amplifiers for voltages or currents of zero or low frequency
|
|
GB593920A
|
|
Improvements in or relating to apparatus for measuring, recording or controlling e.m.f.
|
|
GB536363A
|
|
Improvements in apparatus for drafting textile fibres
|
|
GB504018A
|
|
Tubes for heat interchange apparatus
|
|
US2208803A
|
|
Drafting apparatus
|
|
GB403805A
|
|
Improvements in weighting-means for the rollers of spinningframes
|
|
GB394820A
|
|
Improvements in and relating to means for drafting fibres in spinning frames
|
|
US2043765A
|
|
Spinning frame
|
|
US2032298A
|
|
Weighting means for spinning frames
|
|
GB396817A
|
|
Improvements in and relating to thermionic electrometers
|
|
GB383101A
|
|
Improvements relating to the weighting of the rollers of spinning frames
|
|
US1983181A
|
|
Spinning frame
|
|
US1932799A
|
|
Spinning frame
|
|
GB376827A
|
|
Improvements in apparatus for drafting textile fibres
|
|
GB367152A
|
|
Improvements in means for driving the drawing rolls in spinning machines or like frames
|
|
US1783301A
|
|
Spinning frame
|
|
GB332707A
|
|
Improvements relating to the drawing-rollers of spinning-frames
|
|
US1721028A
|
|
Spinning frame
|
