|
PL398210A1
|
|
Forest slider
|
|
PL398108A1
|
|
Pressure plate
|
|
PL344460A1
|
|
Pendulum-type gravitational power plant
|
|
PL344430A1
|
|
Gravity-type power plant
|
|
PL344429A1
|
|
Centripetal drive
|
|
PL339882A1
|
|
Artificial reinforced concrete river-bed
|
|
PL339603A1
|
|
Gravity water power plant of multiple-arm rotary type
|
|
PL332987A1
|
|
Draughy-powered power generating plant
|
|
PL332590A1
|
|
Shield-type hearing organ protector
|
|
PL316933A1
|
|
Force gauge
|
|
PL295297A1
|
|
Crank mechanism for internal combustion engines
|
|
PL295296A1
|
|
Combustion engine piston
|
|
PL294560A1
|
|
Athletic footwear in particular that for football players
|
