Improvements in and relating to apparatus for determining variation in the force of gravitation applicable also for ascertaining latitude and for controlling or measuring temperature or pressure
GB510366A
An improvement in or relating to vibratory massage apparatus
GB501344A
Improvements in or relating to apparatus for refining and purifying used and dirty lubricating oil
GB482462A
Improved apparatus or means for testing the efficiency of lubricating oils
GB485084A
Improvements in or relating to apparatus for regenerating used lubricating oil
GB482366A
An improvement in or relating to apparatus for refining and purifying used and dirtylubricating oil
GB454550A
New or improved vibratory massage apparatus
GB298899A
Improvements in linings for grinding, refining and mixing machines