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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 |
| 5085545 | Expansible rivet for securing together overlapped panels An expansible rivet for securing together overlapped panels comprises a female member having a plurality of elastic legs defined by a corresponding number of axially elongate notches and a male member having a body portion having axially elongate fins sli... | 02/04/1992 |
| 5054977 | Self plugging blind rivet A structural splitting self plugging pull mandrel blind rivet includes a tubular rivet body and a T-mandrel disposed therein. A locking plug is provided on the T-mandrel and includes a locking section having a plurality of locking rings and a shoulder inc... | 10/08/1991 |
| 5030051 | Screw rivet A screw rivet includes a screw and a grommet. The grommet has internal steps for meshing with external threads of the screw. The internal steps are formed on the inner periphery of an expansible portion of a leg of the grommet split by axial slits, and ha... | 07/09/1991 |
| 5028187 | Security fastener including integral plug body and socket body According to the invention, there is provided a coupler which is realized in the form of an integral unit made of an elastic synthetic resin material which is free from any risk of losing any of its components and can be temporarily but securely held in a... | 07/02/1991 |
| 5007779 | Standoff retainer A standoff retainer is provided for effecting the securing of two panels to each other in spaced planar facing relationship. The retainer lockingly engages a push pin after being received in snap-fit relationship by one of the panels. Ribs on the retainer... | 04/16/1991 |
| 4952106 | Fastener having separate portions for engaging two panels to be secured together A fastener comprises a female member and a male member. The female member has a flange-like head having a pin insertion hole, a hollow cylindrical leg section extending from the head and having a plurality of legs defined by means of a plurality of slits ... | 08/28/1990 |
| 4874276 | Fastener A fastener includes a cylindrical outer member and an insertion member. The cylindrical outer member has a cylindrical portion with an axial bore, and a flange portion provided at one end of the cylindrical portion. The cylindrical portion tapers toward t... | 10/17/1989 |
| 4871289 | Expansion fastener An expansion fastener includes a fastener body which has a pair of integral axial anchoring sections. An expander pin is drivable into a throat of the fastener body to force apart the anchoring sections.... | 10/03/1989 |
| 4840523 | Securing device A securing device includes an outer cylinder having a hollow cylindrical portion with a flange provided at one end, and an insertion member having a rod-like portion to be inserted into the outer cylinder. The hollow cylindrical portion of the outer cylin... | 06/20/1989 |
| 4832547 | Breaking type expansion fastener An expansion fastener comprises a female member including a cylindrical portion, a flange portion and a plurality of elastic leg portions, and a male member including a shaft portion to be fitted in the cylindrical portion, a head portion provided at the ... | 05/23/1989 |
| 4821381 | Fastener made of synthetic resin A fastener made of synthetic resin is molded such that a leg portion of an insertion pin is integrally formed midway of its length with a wide diameter portion for widening a bush, and the bush is fitted on a part of the leg portion under the wide diamete... | 04/18/1989 |
| 4804303 | Attachment block assembly An attachment block structure for connection through a preformed opening in a first workpiece to provide a fastener receiving surface to permit attachment of a second workpiece to the first workpiece comprises a first plastic member having a plurality of ... | 02/14/1989 |
| 4757664 | Wear resistant panel arrangement The invention provides for a fastening arrangement for a screening or lining panel in which the fastening arrangement includes half-tubular protrusions along the periphery of the panel which can fit in pairs into corresponding apertures in a support frame... | 07/19/1988 |
| 4738255 | Suture anchor system A suture anchor system that includes a drill for turning into a bone mass with sissoring blades pivotally connected in a longitudinal drill shaft slot proximate to a cutting end thereof, the blade ends to sissor to extend cutting edges outwardly therefrom... | 04/19/1988 |
| 4602760 | Fuel line bundle clamp A bundle type clip or clamp for holding a number of axially aligned cylindrical objects such as fuel conduits together and in a desired relation to a static structure such as a vehicle body or frame. The clamp has an elongated body portion with a conduit ... | 07/29/1986 |
| 4590732 | Anchor device An anchor device that is comprised of but two parts, a core that has a cylindrical body portion and a sleeve having an inside diameter that matches the body portion. The core has an end cap that is adapted for attachment to a power post or the like. The s... | 05/27/1986 |
| 4407618 | Fastener A fastener comprises a base formed of a flange and a plurality of leg pieces and a screw-receiving member adapted to be embraced between the leg pieces, whereby it is secured onto a given panel by a procedure which involves inserting the leg pieces into a... | 10/04/1983 |
| 4403377 | Fastening device A fastening device comprises a fastening base and a wedge member and is capable of ensuring fast engagement of an engaging leg with a panel by inserting the engaging leg in a hole formed in the panel and driving the wedge member into an insertion hole for... | 09/13/1983 |
