| 摘要 |
1327070 Drawing devices STANDARDGRAPH FILLER & FIEBIG GmbH 8 Dec 1970 [9 Jan 1970] 58245/70 Heading B6P A set of drawing templates such as template 60 includes templates bearing different geometrical cut-out portions. Each template is of similar size and may rotate within a frame having a rebated circular bearing surface 72. Detent means may be formed on the surface 72. |
