Famous Patents
The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 7055439 | Interior contour for bore of a friction support bearing of a railway locomotive traction motor A contour or profile of a bore of a locomotive traction-motor support bearing structure, where such profile preserves the currently center-loading of the upper load zone but moves inboardly the lower load zone to a more general central location. The profile of the b... | 06/06/2006 |
| 4122779 | Dual track transfer system and a transfer car for use therewith A dual track system whereby a transfer car can be turned at least 90° in a minimum amount of space. The track system comprises a first set of parallel railroad-type rails of a standard size and cross section for the wheels of the lead truck of a transfer... | 10/31/1978 |
