"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 7225544 | Ice axe for mountaineering with adjustable grip The ice axe for mountaineering includes a head, a shaft, and an anatomical grip having one free end and an end secured to the shaft. The grip defines a handling zone of the ice axe and includes an adjusting member for adjusting the length of the handling zone. The a... | 06/05/2007 |
| 7222429 | Locking folding knife and associated methods A folding knife includes a handle having a distal portion and a proximal portion, and a blade rotatably connected to the distal portion of the handle. The blade may be moveable between an opened position and a closed position, and may have at least one lock member r... | 05/29/2007 |
| 7059053 | Folding knife with blade lock The blade of a folding knife has a tang portion by which the blade is pivoted to a handle for swinging between an open position and a closed position. In the open position the blade extends from the handle with its sharpened edge exposed for use, whereas in the clos... | 06/13/2006 |
| 7036952 | Single body multi-tool device A single body multi-tool device having a plurality of compartments in a housing thereof. Mounted in these compartments are various hand tools such as a hatchet, a digging tool, a flashlight, a knife and a saw, each being separately usable without interfering with th... | 05/02/2006 |
| 6792683 | Foldable ax Foldable axes cut wood while being safely and easily transportable. The foldable ax provides the benefits of a long handled ax by consisting of four handle elements attached to a blade which unfold and lock in the in use position. The handle elements enclose the bla... | 09/21/2004 |
| 5771588 | Folding ax A folding ax is described which is compact in the folded position and exhibits superior strength, safety and self lubricating characteristics when in the open or use position. The folding ax comprises an ax head pivotally attached to a first shaft. The fi... | 06/30/1998 |
| 4932127 | Hand tools convertible for chopping and splitting A hand tool convertible for chopping and splitting comprises a head including a blade end with a cutting edge, an eye hole extending in an axial direction through the head for receiving a handle, a pair of opposing major side faces extending from the cutt... | 06/12/1990 |
| 4106539 | Folding hatchet There is disclosed a folding hand tool comprising a channel member having a head member rotatably attached to one end and a handle device rotatably attached to the other end with a block member attached to the channel member oppositely disposed the head m... | 08/15/1978 |