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Wheeled distance measuring device

Image Number 4 for United States Patent #7555846.

A wheeled distance measuring device includes a longitudinal pole having two segments, a housing and a casing attached to the segments and pivotally coupled together, a latch device pivotally attached to the housing and having a latch, and a lock device pivotally attached to the casing and having a catch for engaging with the latch of the latch device and for detachably securing the segments together. The casing includes a chamber formed by a wall for receiving the lock device, and a channel formed in the wall for pivotally engaging with a water-drop-shaped pivot member of the lock device and for pivotally attaching and coupling the lock device to the casing.

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