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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 7101229 | Adapter for mogul base open fixture lamps A lamp adapter for receiving a lamp having a conductive threaded portion and an extension with a conductive contact electrically insulated from the conductive threaded portion. The lamp adapter has a body with a top portion and a bottom portion. The top portion has ... | 09/05/2006 |
| 6287152 | Rotatable socket for a halogen lamp A rotatable socket for a halogen-lamp. The socket includes a porcelain base having two insert grooves at its bottom and an H-shaped upright post standing on the bottom. A plus and minus contact members respectively positioned in two opposite recessed side... | 09/11/2001 |
| 6162100 | Adapter for Edison/Bayonet light sockets A power level adapter for connecting a low power light bulb within a higher power socket. The power level adapter includes a collar and a skirt depending from the collar. The skirt includes an outer side having a circumference substantially equal to a cir... | 12/19/2000 |
| 6113433 | Universal electric lamp socket adapter An universal electrical lamp socket adapter for connecting multiple light bulbs to a single electrical socket. The universal electrical lamp socket adapter includes a central section and an adapter extending from an underside of the adapter for mating wit... | 09/05/2000 |
| 5989070 | Bulb socket adapter A light bulb-socket adapter for connecting a bayonet type light bulb to an Edison type socket or an Edison type light bulb to a bayonet type socket. The light bulb-socket adapter includes an Edison type connector section made of conductive material and a ... | 11/23/1999 |
