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| Number | Title | Issue Date |
| 7219437 | Laser guided work device A laser guided work device including a work board having a work surface, a line producing laser projecting a line on the work surface, and a linear motion device engaging the laser to the work board. The linear motion device translates the laser relative to the work... | 05/22/2007 |
| 6964112 | Measuring instrument A device for measuring and marking lines and points on a steel I-beam includes a rib for contacting the outside of an I-beam flange along a line opposite the center of the beam web, a measuring blade that rests on the beam web and measures distances from the outside... | 11/15/2005 |
| 6487784 | Portable drawing board for art students A portable drawing board device adapted for helping art students to draw perspective drawings, includes: (a) a generally rectangular-shaped, flat drawing surface on an upper surface of the drawing board, the drawing surface being adapted for supporting a ... | 12/03/2002 |
| 6289594 | Drywall marking and scoring guide A drywall marking and scoring guide tool having a generally T shape that includes a U-shaped top channel to slidably engage the edge of a drywall sheet, the top channel having a perpendicular stem extending from the channel and incorporating a plurality o... | 09/18/2001 |
| 6182549 | Apparatus for securing flat articles for cutting Apparatus for securing flat articles to be cut, includes, in one embodiment, a base and a clamp bar coupled to the base by actuators. The actuators are slideably moveable to actuate the clamp bar between a clamping position near the base and an open posit... | 02/06/2001 |
| 5845409 | Drawing board A drawing board and clipscale combination in which a paper holder and a ruler are united in a single body. The board has a groove and a portion overhanging it along each of the four sides. The clipscale includes a ruler, one side of which is protruded in ... | 12/08/1998 |
| 4819338 | Drawing instruments A drawing board and drawing instrument combination is provided. The drawing board has grooves along three of its edges and at 45° across the corners which can receive tongues provided on either side of a flat drawing instrument. The instrument has a numb... | 04/11/1989 |
| 4577415 | Windowed indexed calibrated T-square and precision-lined drafting board having linear edges In a preferred embodiment, there is provided a combination of a windowed indexed calibrated T-square and a precision-lined drafting board for use therewith for providing scaled drawings on drafting paper transparent to the drafting board's precision lines... | 03/25/1986 |
| 4506451 | Multi-functional square and angle marking tool having extendable stops A multi-functional tool arranged to allow rapid marking of perpendicular and angular lines on material surfaces is disclosed. One or more extendable stops are provided in the body of the tool to rapidly fix the angular orientation of a marking edge. Optio... | 03/26/1985 |
| 4499667 | Guide clamp A guide clamp is disclosed which includes a clamping jaw at one end of a guide bar. An opposing shifting jaw is slidably carried on the guide bar to permit a workpiece to be embraced by the jaws. The guide bar is a flat, rectangular channel member open at... | 02/19/1985 |
| 4481719 | Drafting apparatus A drafting table and measurement system which utilizes a read head for measuring the displacement of a straight edge overlying the drafting table. The drafting table mounts two perpendicularly disposed straight edges, one of which moves to and fro along t... | 11/13/1984 |
| 4455773 | Non-magnetic line guide unit for copy holder A line guide holder for support on and selective positioning along a surface to provide marking of a line of written material mounted on a copy holder. The holder is slidably mounted in a groove along one side of the copy holder.... | 06/26/1984 |
| 4449304 | Drawing instrument and locking apparatus therefor A drawing instrument and locking apparatus therefor in which the locking apparatus can be made of polyethylene, polypropylene or the like and is not subject to fragmentation or permanent damage during normal use. A displaceable member of the locking appar... | 05/22/1984 |
| 4383375 | Drafting apparatus A drafting apparatus for use with a drawing board having a side edge portion and a planar drawing surface in which a guide track extends in spaced relation to the side edge of the board and is mounted from the board for adjustment into several different p... | 05/17/1983 |
| 4379419 | Panel grooving apparatus A panel grooving apparatus has a table for supporting a panel at a working level. A rail extends along a side of the table and a working assembly is mobile on that rail. The working assembly is selectively immobilized in various grooving positions by stop... | 04/12/1983 |
| 4267656 | Copy holder An improved copy holder comprises a stand and a line guide movably attached to the stand by means of magnetic rollers rotatably mounted side by side with their flats in coplanar relation and their rolling surfaces aligned perpendicular to the line guide f... | 05/19/1981 |
| 4254556 | Portable drafting device for drawing parallel lines, comprising a working plane of flexible plastic material, adapted to be rolled A portable drafting device for drawing parallel lines, consisting of a rectangular flexible plastic material, two guides applied each on one of the short sides of the board, at least one slider adapted to slide on one of said guides, a rule fastened to at... | 03/10/1981 |
| 4244119 | Protractable straight-edge with vise A light weight portable straight-edge which incorporates a complete 180° protractor with a vise for individual position stability. The vise is essentially a common heavy gauge spring establishing a pivot that induces a constant pressure at the extremity ... | 01/13/1981 |
| 4159869 | Cursor for use in microfilm reader A microfilm reader includes a vertical rectangular projection screen surrounded by a rectangular frame. A cursor mechanism is separably provided which includes a vertical rail extending along a side edge of the screen between the frame top and bottom legs... | 07/03/1979 |
| 4102050 | Cursor assembly A cursor assembly for use in association with a viewing window of a microfiche viewer consisting of a first guide rail, a slide member and a reader bar projecting outwardly from the slide member. The slide member has U-shaped slipway extending longitudina... | 07/25/1978 |
