Quotables
"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 6976507 | Apparatus for creating pulsating fluid flow A fluidic oscillator is disclosed, wherein the fluidic oscillator includes a fluid source and a housing coupled to the fluid source. At least one recess is formed within the housing. An insert resides within each at least one recess; the insert provides at least one... | 12/20/2005 |
| 5203501 | Device for fixing a rail onto a slab of concrete Device for fixing a rail onto a slab of concrete comprising a metal chair fixed onto a metal base with interposition of a resilient sole, by means of clamps which are tightened by rotation on an inclined plane and which come to fix simultaneously the rail... | 04/20/1993 |
| 4728031 | Apparatus for fastening rails to railroad ties Apparatus for fastening rails on ties of a railroad comprising four rail screws for flushly mounting an abutment face of a bedplate against the upper surface of the tie and a pre-stressed, elastically deformable bedplate having a convex curved abutment fa... | 03/01/1988 |
| 4480787 | Rail fastening device Disclosed is a rail fastening device particularly suitable for fastening a long rail to a wooden tie, comprising: a flat bellows-shaped intermediate member having tie-mounting parts provided at constant distances; a spike member for securing each of the t... | 11/06/1984 |
| 4262845 | Concrete slab structure for railway track A concrete slab structure for supporting railway track is itself resiliently supported on a base structure by a spring system comprising tubes secured against longitudinal movement in holes extending through the slab from its top surface to its bottom sur... | 04/21/1981 |
