| 摘要 |
The pantograph is designed to obtain an exact copy of the cadastral map to indicate the accurate boundary line between the neighboring registered lands. The pantograph has a plurality of frames(10) of four bars formed in parallelogram combined with a pressure pin(12) for associated movement. Each bar has a plurality of throughholes(a˜d) to match with those of the other frames bars, when adjusted, to secure the accuracy of copying.
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