John M. Hennessey

Follow

Person

Oakland, NJ, US

People

Patents Grantslast 30 patents

Information Patent Grant
Computer controlled winch assembly for stage
- Patent number 6,385,493
- Issue date May 7, 2002
- Production Resource Group L.L.C.
- John M. Hennessey
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Computer controlled movement of stage effects and stage installatio...
- Patent number 5,920,476
- Issue date Jul 6, 1999
- John M. Hennessey
- A63 - SPORTS GAMES AMUSEMENTS