Revolving door
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| Subject | Replies | Date | |
|
Basis | 0 | 8/17/2013 |
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Airport revolving doors | 1 | 8/17/2013 |
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How fast should doors revolve in feet per minute | 0 | 8/17/2013 |
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How fast should a revolving door move???? How should it stop? How should it activate? | 1 | 6/24/2013 |