|
PL428920A1
|
|
Mechanical rescue stand
|
|
PL392266A1
|
|
Method for elimination of the fire hazard in the dammed areas of mines
|
|
PL392206A1
|
|
Intrinsically safe light emitting diode lighting
|
|
PL392066A1
|
|
Mixture for the production of lightweight usable aggregate for the construction and building purposes
|
|
PL389967A1
|
|
Method for classification of automotive vehicles in motion
|
|
PL388699A1
|
|
Method for strengthening the corner branch of dog headings
|
|
PL388113A1
|
|
Device for optoelectronic measurement of methane concentration
|
|
PL387581A1
|
|
Stand-type valve block
|
|
PL386501A1
|
|
Optoelectronic device for measuring of methane concentration
|
|
PL386423A1
|
|
Head for non-destructive diagnostic testing of steel ropes
|
|
PL383595A1
|
|
Housing of electronic devices for application in zones endangered with explosion
|
|
PL383311A1
|
|
Fluidal furnace
|
|
PL381152A1
|
|
Method for pit shaft liquidation
|
|
PL380349A1
|
|
Thyristor protection for spark-proof circuit
|
|
PL379506A1
|
|
Tool for contact-free temperature measurement of unmined coal in the examined holes
|
|
PL379353A1
|
|
The manner of liquidation of mining shaft
|
|
PL378797A1
|
|
Method of determination of the value of the effective seismic waves energy absorption factor in front of the mining wall machined with a combine
|
|
PL370469A1
|
|
Optoelectronic methane detector designed for continuous measurement of methane concentration in pipelines
|
