PL232321A1 - Rail-track bed precast reinforced concrete unit for tracks of tower cranes and other rail-mounted machines and method of making this rail-track bed
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Rail-track bed precast reinforced concrete unit for tracks of tower cranes and other rail-mounted machines and method of making this rail-track bed
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Application filed by Budownictwa Weglowego Fabud KfiledCriticalBudownictwa Weglowego Fabud K
Priority to PL23232181ApriorityCriticalpatent/PL232321A1/en
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PL23232181A1981-07-211981-07-21Rail-track bed precast reinforced concrete unit for tracks of tower cranes and other rail-mounted machines and method of making this rail-track bed
PL232321A1
(en)