5,095,822
Cable Crossover Device
Andrew T. Martin
March 1992
![Patent 5095822 Cable Crossover Device](https://marventure.com/wp-content/uploads/2019/06/Patent-5095822-Cable-Crossover-Device-image-1.png)
5,749,137
Modular Loudspeaker Enclosure Suspension Rigging Method
Andrew T. Martin
May 1998
![Patent 5749137 Modular Loudspeaker Enclosure Suspension Rigging Method](https://marventure.com/wp-content/uploads/2019/06/Patent-5749137-Modular-Loudspeaker-Enclosure-Suspension-Rigging-Method-image.png)
5,758,852
Modular Loudspeaker Enclosure Suspension Rigging System
Andrew T. Martin
June 1998
![Patent 5758852 Modular Loudspeaker Enclosure Suspension Rigging System](https://marventure.com/wp-content/uploads/2019/06/Patent-5758852-Modular-Loudspeaker-Enclosure-Suspension-Rigging-System-image.png)
5,775,664
Anchor Fastening Device
Andrew T. Martin
July 1998
![Patent 5775664 Anchor Fastening Device](https://marventure.com/wp-content/uploads/2019/06/Patent-5775664-Anchor-Fastening-Device-image.png)
5,819,959
Modular Pivotal Suspension Rigging Apparatus
Andrew T. Martin
October 1998
![Patent 5819959 Modular Pivotal Suspension Rigging Apparatus](https://marventure.com/wp-content/uploads/2019/06/Patent-5819959-Modular-Pivotal-Suspension-Rigging-Apparatus-image.png)