| Patents for E04H 3 - Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries, prisons (4,733) |
|---|
| 12/27/1977 | US4065194 Pulpit elevating and lowering system |
| 12/20/1977 | US4063392 Telescoping seating system with automatically folding chairs |
| 12/13/1977 | US4062519 Pulley lift assembly and curtain system employing same |
| 11/22/1977 | US4058939 Tiered grandstand |
| 10/18/1977 | US4054096 Mobile elevationally adjustable stage |
| 10/04/1977 | US4051638 Removable enclosure for a swimming pool or the like |
| 09/27/1977 | US4050853 Rain-responsive control |
| 09/13/1977 | US4047594 Scaffold and platform adaptable for assembly and disassembly |
| 09/06/1977 | US4045921 Alignment device for telescoping gymnasium seating |
| 08/16/1977 | US4041655 Telescoping seating systems |
| 08/02/1977 | US4038788 Sliding roof |
| 06/21/1977 | US4030255 Folding handrail system for telescoping seating systems |
| 05/31/1977 | US4026221 Multi-leg mobile folding stage |
| 05/31/1977 | US4026076 Portable stage |
| 03/29/1977 | US4014523 Arena aisle railing |
| 03/29/1977 | US4014522 Permanently fixed end rails on telescopic bleacher seats |
| 03/15/1977 | US4011695 Bleacher system |
| 02/15/1977 | US4007810 Heater assembly for a rotating cafeteria type food service counter |
| 02/08/1977 | US4006564 Foldable hand rail and seating structure |
| 01/25/1977 | US4004380 Double walled inflatable structures |
| 01/04/1977 | US4000586 System for mounting articles to telescopic structures |
| 12/28/1976 | US3999491 Elevationally adjustable folding stage |
| 12/21/1976 | US3998142 Air circulating system for ultra clean areas |
| 12/14/1976 | US3996711 Walls |
| 12/14/1976 | US3996630 Underground swimming-bath |
| 12/07/1976 | US3995832 Collapsible bleacher rail |
| 11/23/1976 | US3992824 Shopping mall |
| 08/24/1976 | US3975869 Sports complex |
| 08/17/1976 | US3974894 Portable riser |
| 07/13/1976 | US3968606 Portable rostrum |
| 06/22/1976 | US3964402 Portable stage |
| 06/22/1976 | US3964215 Folding handrails for telescoping seating sections |
| 01/06/1976 | US3931452 Device for attachment of ceiling-supended equipment |