Apparatus for indicating the depth of liquids in vessels.
GB116878A
Improvements in Apparatus for Indicating the Depth of Liquid in a Vessel.
GB116479A
Improvements in Apparatus for Indicating the Depth of Liquid in a Vessel.
GB123554A
Improved Transmission Gear applicable to Power Driven Vehicles.
US867994A
Apparatus for indicating the depth of liquid in a vessel.
GB190623411A
Improvements in Apparatus for Indicating the Depth of Liquid in a Vessel.
CA83093A
Apparatus for indicating the depth of liquid in closed vessels
US732578A
Liquid-level indicator.
GB190304166A
Improvements in Apparatus for Indicating the Depth of Liquid in Closed Vessels under any Degree of Pressure.
GB190002211A
An Improvement in Apparatus for Indicating the Depth of a Liquid in a Vessel.
GB189715275A
Improved Apparatus for Indicating the Depth at which Liquids stand in Vessels out of sight, irrespective of the relative horizontal position of such Vessels to the Indicating Apparatus.
CA390105A
Electric motor control system
CA290933A
Liquid indicator
CA221313A
Apparatus for indicating the depth of liquid
CA221312A
Apparatus for indicating the depth of liquid
CA295295A
Apparatus for indicating the depth of liquids in tanks
