Vacuum-grain - drying
Passburg, Emil
Vacuum-grain - drying by Emil Passburg - Berlin 1912
Vacuum Drying
Grain
Drying
633.1:660.047.2 / P 286 V
Vacuum-grain - drying by Emil Passburg - Berlin 1912
Vacuum Drying
Grain
Drying
633.1:660.047.2 / P 286 V