Automatic shut-off valve for liquid storage tanks and method of
Automatic shutoff valve
Automatic soil moisture sensing and watering system
Automatic switching valve
Automatic vacuum isolation valve network for a vacuum collection
Automatic valve assembly
Automatic water shut-off valve
Automatic watering system using siphon action
Automatically switching valve with remote signaling
Automatically switching valve with remote signaling
Automotive-fluid replacement apparatus
Auxiliary fuel tank system with on-board diagnostics
Axial input flow development chamber
Axially semisymmetrical supersonic air intake for reaction engin
Backflow preventer and test cock assembly
Backflow preventer apparatus and method with integration of...
Backflow preventer assembly
Backflow prevention assembly
Backflow preventor with adjustable cutflow direction
Backflow preventor with adjustable outflow direction