PRIN. OF DRAFTING AND SHOP DRAWINGS - OD1641 - LESSON 1/TASK 5
initials, and any necessary approval signatures.
Revision blocks are usually
located in the upper right-hand corner of the drawing.
Figure 92 illustrates a
revision block.
FIGURE 92.
AN EXAMPLE OF A
REVISION BLOCK.
FIGURE 93.
AN EXAMPLE OF ZONED DRAWINGS.
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