Device for drawing a pattern on a support, particularly for use

Details Device for drawing a pattern on a support, particularly for use Device for drawing a pattern on a support, particularly for use

1981-04-30

1983-01-25

Martin, Jr., William D.

Geometrical instruments

Miscellaneous

Light direction

33 18R, 33 27L, 33189, 46240, 346 8, 346 17, 346139R, G01D 1500

Patent

active

043695795

ABSTRACT:
The device comprises a box, a pencil-holder with a magnet, for sliding on the box, a carriage in the box, with a magnet, and means for moving the carriage for displacing the pencil-holder through the magnets. A drawing support is placed on the box, so that a pencil in the pencil-holder can draw a pattern on the support as the carriage is moved.

REFERENCES:
patent: 1174787 (1916-03-01), Wilkinson
patent: 1310201 (1919-07-01), Maxim
patent: 2675291 (1954-04-01), Webster
patent: 3281853 (1966-10-01), Madeira et al.
patent: 3376578 (1968-04-01), Sawyer
patent: 3510949 (1970-05-01), Christy

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