...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7344320 | Walking staff with tripod base and adaptable mount A staff apparatus having a leg assembly with multiple movable legs. In one embodiment, the leg assembly includes three legs to form a tripod. The staff apparatus may include an adaptable magnetic-based mount for releasably attaching a camera, spotting scope, gun or ... | 03/18/2008 |
| 7316449 | Expandable ambulatory walking device and method of use An expandable ambulatory walking device and method of use are disclosed. In one form, an ambulatory walking device includes an elongated member having a first end and a second end and a rubber contact material coupled to the first end. The device further includes an... | 01/08/2008 |
| 7171831 | Tool for turning keys A tool for turning keys comprising a tool body having an elongate slot adapted to removably receive the head of a key. The tool has an aperture, by means of which a key ring is attached to the tool. The aperture may have a constriction to prevent the key ring slidin... | 02/06/2007 |
| 4101163 | Collapsible chair A collapsible chair adapted to be carried by a user wherein the chair comprises a seat which is pivotally attached to a support post which, in turn, is pivotally attached to a disk-shaped base such that the seat and base may be pivoted with respect to the... | 07/18/1978 |