|
| US3932696 | 26 déc. 1973 | 13 janv. 1976 | H. H. Robertson Company | Underfloor access housing utilizing a trough space of a cellular flooring unit |
| US4010314 | 15 août 1974 | 1 mars 1977 | Raceway Components, Inc. | Insert device for cables |
| US4106249 | 30 juin 1977 | 15 août 1978 | Verco Manufacturing, Inc. | Method and apparatus for interlocking and venting a structural diaphragm |
| US4858401 | 15 janv. 1988 | 22 août 1989 | | Cable ducting system |
| US4899506 | 24 avr. 1989 | 13 févr. 1990 | Square D Company | Large capacity electrical service fitting for concrete floors |
| US4922672 | 10 mars 1989 | 8 mai 1990 | Square D Company | Snap-on underfloor preset |
| US5125199 | 13 nov. 1989 | 30 juin 1992 | Square D Company | Floor duct with integral interlock |
| US5257487 | 1 juil. 1992 | 2 nov. 1993 | Butler Manufacturing Company | Floor box for in-floor activations in a concrete floor |
| US5317846 | 28 mars 1991 | 7 juin 1994 | United Dominion Industries, Inc. | Underfloor wire distributing reinforced concrete floor structure |
| US5784841 | 11 janv. 1996 | 28 juil. 1998 | Patio Enclosures, Inc. | Electrical raceway housed in a structural member |
| US7449633 | 30 août 2006 | 11 nov. 2008 | Thomas & Betts International, Inc. | Electrical box for concrete walls |
| US7464507 | 22 oct. 2004 | 16 déc. 2008 | Zierer Investment Enterprises LLC | Devices and methods for protecting exposed pipe ends during construction |
| US7563978 | 19 sept. 2008 | 21 juil. 2009 | Thomas & Betts International, Inc. | Electrical box for concrete walls |
| US7757875 | 23 juin 2006 | 20 juil. 2010 | Thomas & Betts International, Inc. | Pull out extension contained in electrical box |
| US7836645 | 26 janv. 2006 | 23 nov. 2010 | Zierer Investment Enterprises, LLC | Devices and methods for protecting exposed pipe ends |