|
US4836240A
|
|
Pilot-assisted pressure relief valve
|
|
US4836249A
|
|
Rotary-action directional control valve
|
|
US4746776A
|
|
Float-actuated switching assembly
|
|
US4668930A
|
|
Transformer coil construction
|
|
US4386395A
|
|
Power supply for electrostatic apparatus
|
|
US4089171A
|
|
Four position valve assembly
|
|
US3910732A
|
|
Gerotor pump or motor
|
|
US3908093A
|
|
Intercom system with an improved mechanism for preventing the interruption of conversations
|
|
US3906294A
|
|
Time delayed solenoid valve
|
|
US3849670A
|
|
Scr commutation circuit for current pulse generators
|
|
US3825639A
|
|
Method of encapsulating electric equipment
|
|
US3766310A
|
|
Bushing cover
|
|
US3732433A
|
|
Combustion control circuit for a fuel burner
|
|
US3795725A
|
|
Method of encapsulating electrical equipment
|
|
US3724483A
|
|
Spool release and sequence valve
|
|
US3724500A
|
|
Spool release and sequence valve
|
|
US3754222A
|
|
Intrusion detection device utilizing low frequency sound waves and phase detection techniques
|
|
US3781742A
|
|
Thermally actuated switch
|
|
US3698841A
|
|
Hydraulic motor
|
|
US3650297A
|
|
Spool release and sequence valve
|
