|
GB191217846A
|
|
Improvements in Thermometers.
|
|
GB190924817A
|
|
Improvements in and relating to Recording Vacuum-gauges.
|
|
GB190915645A
|
|
Improvements in and relating to Means for Delivering Disinfectants, particularly in Water Closets.
|
|
GB190808418A
|
|
Improvements in and relating to Reservoir Pens and the like
|
|
GB190807714A
|
|
Improvements in and relating to Thermometers.
|
|
GB190800930A
|
|
Improvements in Adding Machines
|
|
US876773A
|
|
Mercurial thermostatic circuit-closer.
|
|
GB190713270A
|
|
Improvements in Mercurial Thermostatic Circuit Closers.
|
|
GB190705674A
|
|
An Improved Pneumatic Pressure Gauge.
|
|
GB190705541A
|
|
An Improvement in Hypodermic Syringes.
|
|
GB189727730A
|
|
Improvements in Clinical Thermometers.
|
|
CA351123A
|
|
Sphygmomanometer
|
|
CA354340A
|
|
Mercurial pressure gauge
|
