"Fooling around with alternating current is just a waste of time. Nobody will use it, ever."
Thomas Edison ; 1889
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| Number | Title | Issue Date |
| 7000279 | Transit boarding platform panel The present invention relates to a transit boarding platform panel for use along the edge of an existing transit platform adjacent a track. The panel comprises a molded base portion formed from a reinforced composite polymer. The base portion has a top deck and bott... | 02/21/2006 |
| 6895622 | Transit boarding platform panel A transit boarding platform panel comprising a base portion formed from a reinforced composite polymer. The base portion has a top deck and a bottom plate, a first end, a second end, a first side and second side. Between the top deck and bottom plate are a series of... | 05/24/2005 |
| 6449790 | Transit boarding platform panel A transit boarding platform panel comprising a base portion formed from a reinforced composite polymer. The base portion has a top deck and a bottom plate, a first end, a second end, a first side and second side. Between the top deck and bottom plate are ... | 09/17/2002 |