|
PL385503A1
|
|
In situ Optical Dust Aerosole Monitor
|
|
PL378307A1
|
|
Overvoltage limiter
|
|
PL374163A1
|
|
Control system for a circuit breaker with hold-up solenoid and electrodynamic tripping
|
|
PL374128A1
|
|
Method for the water content radiometric measurement
|
|
PL369982A1
|
|
Electromagnet operated vacuum circuit breaker with electrodynamic compensator
|
|
PL369039A1
|
|
Spark-proof electro hydraulic valve distributor with increased flow
|
|
PL367850A1
|
|
System for continuous monitoring of relative changes in stresses occurring before the longwall
|
|
PL367851A1
|
|
Method and system for recording earth surface vibration and deformation, particularly resulting from mining activities
|
|
PL367591A1
|
|
High flow solenoid air valve
|
|
PL367467A1
|
|
Wireless communication system for deep mines
|
|
PL365616A1
|
|
Hydraulic system designed to sprag longwall lining until set value of initial support with super charge is reached
|
|
PL364031A1
|
|
Method for controlling operation of product collection in the aquatic pulsator jig
|
|
PL363598A1
|
|
Spark-proof battery power pack
|
|
PL363297A1
|
|
Method for determination of ash content in coal
|
|
PL362677A1
|
|
Feed system for thermo-catalytic and thermo-conductometric gas analysers
|
|
PL361677A1
|
|
Method and portable apparatus designed for measuring ash content in coal
|
|
PL360313A1
|
|
Method for transmission of spark-proof electrical energy
|
|
PL356255A1
|
|
Control unit
|
|
PL355978A1
|
|
Hydraulic system designed to control initial pressure in self-advancing supports
|
|
PL353751A1
|
|
Low volatge vacuum circuit breaker with reconversion-relaxation system
|
