| Location | St. Paul |
| Location Code | O |
A dwell meter
measures the angle of rotation of the cam through which the points are opened and closed, and registers the dwell angle - the period when they are closed
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Minnesota Tool Library
https://www.mntoollibrary.org
https://www.mntoollibrary.org
St. Paul
1010 Dale Street NSaint Paul, MN, 55117
USA
651-383-7082