E01C 13 - Pavings or foundations specially adapted for playgrounds or sports grounds

Patents for E01C 13 - Pavings or foundations specially adapted for playgrounds or sports grounds (3,222)
04/1977
04/19/1977	US4018961 Epoxy resins
03/1977
03/15/1977	US4012545 Turf having solidified plasticized sulfur backing
02/1977
02/22/1977	US4008548 Playing surface
02/08/1977	US4007307 Artificial lawn
02/01/1977	US4005943 Resilient structures
11/1976
11/30/1976	US3995079 Synthetic golf greens
11/23/1976	US3993823 Laminar roller rink surface and method of producing same
11/23/1976	US3993412 Freeze thaw stability, longer life and prevents reflective cracking
10/1976
10/19/1976	US3986342 Method of securing a perimeter fence around an ice rink without embedding into ground
10/05/1976	US3983713 Method of creating and outdoor ice slab in summer weather and of reducing energy requirements for indoor and outdoor ice rinks
08/1976
08/10/1976	US3974312 Glass fibers, resin coating
07/1976
07/20/1976	US3970300 Recreational facility slide
06/1976
06/08/1976	US3961751 Artificial cross-country skiing path
06/01/1976	US3960375 Element for use in making a playing surface
05/1976
05/25/1976	US3959542 Artificial ski matting
04/1976
04/20/1976	US3950908 Floor or wall covering panel
03/1976
03/30/1976	US3946529 Floor for sports and in particular for roller skating
02/1976
02/24/1976	US3940522 Synthetic fibers and pile fabrics made therefrom
02/03/1976	US3935687 Platform tennis court
01/1976
01/27/1976	US3935352 Plasticized sulfur
01/20/1976	US3933002 Skating rink
01/06/1976	US3930647 Skating rink assembled from a kit