1878 W. de W. Abney 260 Chain-dotted straight lines.
1931 16 Jan. 91/3 One of the ropes is indicated by chain-dotted lines in Fig. 1.
1967 A. Battersby (ed. 2) iii. 40 Ladder activities can be strung together as shown in Fig. 3.15 to form a ladder diagram. The chain-dotted lines which connect them represent lead and lag times.