Signal Training Vol III no 26: Switchboards UC, 10- & 6-line (80 p.)
Book number: 2306
Original reference: 26/GS/232
Date: 1940
Pages: 80
Size: 130 x 210 mm
Price: € 10,00
Book number: 2306
Original reference: 26/GS/232
Date: 1940
Pages: 80
Size: 130 x 210 mm
Price: € 10,00