Erkin B. Nurgaliov本实用新型的三合一尺子是将长条形尺子的一端制作成圆弧形，自圆弧与尺子上有刻度的长边的吻合处始，经由圆弧向尺子无刻度的长边及圆弧的相对处连续制做出量角器的刻度，在尺子另一端开有圆心定位通孔或设有圆心定位针，在该通孔内侧等距离开有一行半径通孔。长条形尺子有刻度的长边即可量度长度，量角器即可量度角度，圆心定位通孔和半径通孔二者配合即可画出不同半径的圆或圆弧，使一把尺子具有量度长度、角度、画圆三种功能。
A method for accurately determining the location of a pre-selected survey or construction mark, or for accurately identifying the survey position for a new mark with pre-selected location coordinates. A Satellite Positioning System (SPS), such as GPS or GLONASS, with at least two SPS stations (anten ...
A magnetic display system which comprises a display having a non-magnetic substrate and a microcapsule coating layer provided on the substrate, with sealed magnetic particles having an excellently light-absorptive surface characteristic and also sealed non-magnetic particles having an excellent ligh ...
A display device is disclosed which employs a magnetic panel. The magnetic panel is formed by two oppositely arranged substrates at least one of which is transparent or semi-transparent. The space between the two substrates is filled with a dispersing liquid having a yielding value higher than 5 dyn ...
A magnetic display system uses a display wherein a non-magnetic substrate has applied thereon a microcapsule coating layer having sealed light-absorptive magnetic particles and light-reflective non-magnetic particles which are dispersed in an oily liquid. A permanent magnet causes a shift of the lig ...
Disclosed is a palm rest (220) for use with a computer data entry devices such as a computer keyboard (222) that minimizes an alleviated posture- and stress-related disorders associated with use of computer devices. The palm rest includes a hand-support section (226) that is substantially rectangula ...
An angular position sensor having high angular resolution and which provides an immediate indication of the angular position being measured upon the application of power to the position sensor is disclosed. A quadrature disk having a continuous notch or recess in the outer periphery thereof is rotat ...
This invention relates to office machines and accessories therefor, and more particularly to a wrist support for use with office machines having a keyboard such as a computer terminal keyboard. The wrist support described and claimed herein is a device which is designed to fit horizontally against t ...
A wrist rest support for supporting a users wrist when he is performing tasks involving repetitive motion with the hands and fingers such as operating a computer keyboard or computer mouse which includes a base pad that is positioned partially under the keyboard and includes a section extending away ...
A combination marking and cutting device which is characterized by a cylindrical, hollow handle having a removable plug at one end and a tape housing provided on the opposite end, for receiving a length of spring-loaded measuring tape. The measuring tape can be extended from the tape housing against ...
