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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 6053677 | Apparatus for supporting keys and key blanks during cutting thereof An apparatus and method for supporting angled or chevron-shaped keys or key blanks during cutting of bit surfaces in the blade portions thereof. The angled key blank is supported at the intermediate horizontal ledge portion thereof such that the upper por... | 04/25/2000 |
| 4525908 | Manually operable universal key code cutting device The device includes a base plate, a longitudinally slidable key vise carriage on the base plate, and an overhead support for a manually operable key file. The various components cooperate in such a manner as to permit adjustments in the successive spacing... | 07/02/1985 |
| 4251173 | Key cutter A key cutter is provided that includes a machine for cutting keys for most pin tumbler or disc tumbler locks. The machine is not a duplicator but is a machine for cutting keys by the code or number. The machine includes a base, turret assembly, and an ele... | 02/17/1981 |
| 4092806 | Key duplicating machine A key duplicating machine is provided comprising a rotatable grinding wheel having a cutting edge and a guide member having a reference edge. The guide member is disposed with its reference edge at a fixed distance from the cutting edge of the grinding wh... | 06/06/1978 |
