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PL296820A1
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Method of testing toothed gears under load, in particular self-locking ones
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PL292424A1
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Method of changing polar coordinatess into rectangular ones while numerically controlling displacement of objects and apparatus therefor
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PL289970A1
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Externally meshing planetary gear
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PL287325A1
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Method of thermally thoughening thin and elongated workpieces and apparatus therefor
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PL162750B1
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Residual magnetism indicator
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PL285463A1
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Method of simultaneously welding down two additional component to a cylindrical tank and apparatus therefor
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PL284618A1
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Method of chromium plating piston ring grooves on large-diameter pistons in partricular those of marine engines and apparatus therefor
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PL282047A1
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Apparatus for washing away and collecting sanitary wastes in particular for use in railway passenger cars
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PL275667A1
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A method and device for determining the dynamic rigidity of flexible elements
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PL273647A1
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Running speed related control system for controlling operation of railway car equipment in dependence of running speed of a train
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PL273109A1
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Guideway for barstock rest
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PL271770A1
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Mechanism for adjusting height of upper bed in sleeping cars
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PL271393A1
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Mechanism for changing inclination of a backrest for furniture pieces intended to be used as seats and beds, in particular those used in rail-vehicles
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PL271265A1
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Worm gear
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PL269413A1
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Drawing punch
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PL269414A1
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Dumping container
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PL258052A1
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Ball-type overload coupling
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PL257632A1
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Apparatus for stamping links from a metal strip
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PL256813A1
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Boring bar
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PL255209A1
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Slide positioning error compensation system,in particular for programmably repositioning a tailstock
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