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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 6209572 | Device for repairing drains A coupling system that can be placed into the existing drain and over the existing drain pipe to effect a repair without removal of an existing tub, shower or similar receptacle. The drain coupling system is self-sealing and can be locked into place from ... | 04/03/2001 |
| 6141918 | Preformed casting for concrete deadman The present invention 10 discloses a device to aid in providing ballast to place an object, e.g., a tank 16, underground. The device comprises a pair of generally horizontal elongated cylindrical members 30 having a bell 58 and spigot 60 type end for bein... | 11/07/2000 |
| 5971136 | Tower-like transfer device A tower-like transfer device includes a cylindrical tower post having an upper post portion and a lower post portion constituted by connecting post constituent members of one kind or two kinds or more, a lift installed liftably to the tower post, an upper... | 10/26/1999 |
| 4819549 | End seal for clean room ceiling supports A clean room ceiling grid system having a detent means for loading filter panels into ceiling grids from a clean room. The system is operable to permit removal of the filter panels by use of a filter panel removing tool. More particularly, this clean room... | 04/11/1989 |
| 4722155 | Mobile building construction A mobile building construction comprises a wall structure (1) intended, together with a roof, to define at least one room. The wall structure (1) comprises two spaced-apart shells (2,3) defining a gap-like space (4) which, at the top, has openings for fil... | 02/02/1988 |
| 4659269 | Fastening dowel of plastics A fastening dowel for fastening objects to tiled plasterboard walls includes a shaft portion with expansible legs, a neck and an end flange adapted to rest against an end face of the wall. In order to prevent water from penetrating the plaster wall when t... | 04/21/1987 |
| 4233788 | Tool for blowing insulation into an existing wall structure having a brick exterior The apparatus and method of supplying pulverized insulative material within an existing wall structure which already has a pad of insulative material located within the wall. An access opening or hole is provided through the exterior wall surface. The too... | 11/18/1980 |
| 4114329 | Anchoring arrangement kit An anchoring arrangement kit includes a drilling tool adapted to drill a generally cylindrical anchoring hole in a support structure. The kit further includes a support arrangement which supports the drill for rocking or orbiting motion to thereby enlarge... | 09/19/1978 |
| 4103464 | Tool for blowing insulation into an existing wall structure The apparatus and method of supplying pulverized insulative material to within an existing wall structure which already has a pad of insulative material located within the wall. An access opening is provided through the outer surface of the wall. The tool... | 08/01/1978 |
| 4096672 | Anchoring arrangement for securing an object to a support structure having an internal cavity An anchoring arrangement for securing an object to a support structure having an internal cavity includes an anchoring element which extends through an anchoring hole into the internal cavity and includes a hollow anchoring member having a passage at its ... | 06/27/1978 |
| 4050202 | Method and arrangement for anchoring an object to a support structure An anchoring member is inserted into an anchoring hole in a support structure and has transverse dimensions smaller than those of the anchoring hole, and is supported with clearance in such anchoring hole by means of a cap member of ring-shaped configurat... | 09/27/1977 |
| 4044512 | Method and arrangement for anchoring an object to a support structure A method and arrangement for anchoring an object to a support structure having an anchoring hole includes inserting into the anchoring hole an anchoring member slightly smaller than the latter so that a clearance is formed in the anchoring hole about the ... | 08/30/1977 |
| 4018018 | Architectural block and the structure composed thereof The present invention provides an architectural block which comprises two opposed side walls and at least two parallel partitions positioned between the side walls perpendicular thereto. The partitions and side walls define chambers within the block, and ... | 04/19/1977 |
| 4001989 | Apparatus for fixing an object to a low-strength support structure A method and an apparatus for fixing an object to a low-strength support structure having interior cavities includes inserting an anchor member and an expandable element, which has an interior space and which is positioned about the anchor member, into an... | 01/11/1977 |
| 3995401 | Method of attaching wallboard and stud therefor Wall framing members, specially fabricated with grooves in one face, have wallboard affixed to the framing member face by a specially fabricated compatible injector for forcing hot melt adhesive into the groove, while the wallboard is being held firmly ag... | 12/07/1976 |
