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INGERSOLL RAND SECURITY TECHNOLOGIES
Carmel, IN US
| INGERSOLL RAND SECURITY TECHNOLOGIES Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20120085223 | BLAST DOOR - A blast door ( | 04-12-2012 |
| 20110100762 | METHOD OF USING AN ELEVATOR SYSTEM, ELEVATOR SYSTEM FOR SUCH A METHOD AND METHOD OF RETROFITTING SUCH AN ELEVATOR SYSTEM AND ELECTRONIC DOOR TRIM - The invention relates to a method of operating an elevator system in a building with at least two storeys ( | 05-05-2011 |