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Application filed by Dyckerhoff & Widmann Ag, Ernst BongardtfiledCriticalDyckerhoff & Widmann Ag
Publication of CH40962ApublicationCriticalpatent/CH40962A/en
CH40962A1907-07-221907-07-22
Stamping machine for the production of hollow bodies, the walls of which have different thicknesses at different points
CH40962A
(en)