In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 6826946 | Forming machine with a rotating wedged disc A forming machine according to the invention comprises at least one forming station having a punch and a die as tools and a device for setting the axial position of one of the two tools. The setting device has, as adjusting wedge, a rotary wedge disk which is rotata... | 12/07/2004 |
| 5794486 | Upper tool holder apparatus for press brake An upper tool clamp is provided that is supported by a holder body arranged on an upper table of a press brake, so that the upper tool clamp can be oscillated between a clamped state and an unclamped state. A pressing member is mounted on a lower portion ... | 08/18/1998 |
| 5443549 | Terminal crimping machine A terminal crimping machine provided with an applicator having a crimper for crimping a terminal to a wire and an anvil, comprising: a frame; a cylinder fixed to said frame and having a rod, said cylinder for moving the crimper up and down and; a bumping ... | 08/22/1995 |
| 4546632 | Portable conduit bending apparatus A portable electric driven conduit bender which accommodates rigid, IMC and thinwall conduit of various sizes in a single setup includes a rotatable, cone-shaped bending shoe, and a roller assembly for supporting conduit during bending. The bending shoe h... | 10/15/1985 |