| Patents for B28B 23 - Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material (3,841) |
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| 09/27/1977 | USRE29418 Flexible ceramic member having a pre-loaded tensile force applying means |
| 09/27/1977 | USRE29417 Papermaking system including a flexible ceramic member having a pre-loaded tensile force applying means |
| 09/27/1977 | US4051216 In-line moulding of prestressed concrete articles |
| 09/27/1977 | US4050978 Method for producing light-weight construction member |
| 09/06/1977 | US4045935 Metal cased refractory and method of making same |
| 08/16/1977 | US4041664 Joist, structural element and devices used in making same |
| 08/09/1977 | US4040775 Apparatus for making a prestressed concrete slab |
| 07/26/1977 | US4038355 Molding concrete ties |
| 07/19/1977 | US4036922 Method and apparatus for moulding hydraulic cement or the like material |
| 06/28/1977 | US4032612 Cement mortar, molding |
| 06/21/1977 | US4031285 Lightweight, reinforced foamed organic polymer and cementitious material structure |
| 05/10/1977 | US4021984 Sectional edge strip |
| 04/19/1977 | US4018188 Reinforced concrete slat floor |
| 02/15/1977 | US4007572 Hog slat reinforcing bar support |
| 02/08/1977 | US4006523 Method of producing a pre-stressed beam of steel and concrete |
| 01/04/1977 | US4000591 Holder adapted for supporting an anchor insert to be embedded in a concrete slab |
| 12/28/1976 | US3999913 Concrete shaping and stressing means |
| 11/30/1976 | US3994639 Apparatus for extruding concrete |
| 11/30/1976 | US3994470 Mold having means for positioning a window frame |
| 11/23/1976 | US3993419 Apparatus for tensioning reinforcement in a concrete pole mold |
| 11/02/1976 | US3989431 Pile extruder |
| 10/12/1976 | US3985482 Device for producing prestressed concrete member |
| 09/07/1976 | US3979171 Concrete plank machine with wire mesh guide |
| 08/31/1976 | US3978183 Method of filter molding and electrical heating unit made thereby |
| 08/03/1976 | US3972508 Take-up actuator |
| 06/29/1976 | US3965541 Reinforcing strand anchorage assembly |
| 06/22/1976 | US3964154 Device for simultaneously stressing a number of tension elements |
| 06/01/1976 | US3960995 Heat treatment |
| 06/01/1976 | US3960356 Anchor bolt holder |
| 04/27/1976 | US3952402 Composite structural panel and process of making |
| 04/20/1976 | US3950905 Method for prestressing a structural member |
| 04/13/1976 | US3949531 Hollow cored concrete slab and method of making the same |
| 04/06/1976 | US3948010 Reinforcing device for an element of prestressed concrete |
| 03/09/1976 | US3942238 Method for reinforcing structures |
| 02/24/1976 | US3939617 Metal holder for disposing a guide structure on a concrete foundation |
| 02/17/1976 | US3938922 Means for forming a prestressed slab including collapsible bulkheads |
| 02/10/1976 | US3937607 Post-tensioning anchors assembled in combination with a spacer strip |
| 01/27/1976 | US3935049 Method of covering a substrate by overidge bonding of a covering material about the edges of the substrate |
| 01/20/1976 | US3933969 Hollow reinforced concrete fence post and method and apparatus for making the same |
| 01/13/1976 | US3932082 Means for forming a reinforced concrete module |
| 01/06/1976 | US3930373 Reinforced concrete pile and a method of manufacturing such a pile |