TY - GEN A1 - Schaeffer, Jakob Christian (1718-1790) PB - gedruckt bey Heinrich Gottfried Zunkel L2 - http://pbc.gda.pl/Content/2779 KW - technology KW - washing machines KW - printed books 1501-1800 T1 - Die beqveme und hochstvortheilhafte Waschmaschine UR - http://pbc.gda.pl/dlibra/publication/edition/2779 ER -