Patent
-
Patent:US6171111
09.01.2001 Buckner, Harry (2140 Sycamore, Apt. 3, Louisville, KY : Educational device for illustrating mathematical relationships
-
Patent:US6192594
27.02.2001 Wackowski, Sally L. (Vernal, UT) : Fraction ruler
-
Patent:US6196455
06.03.2001 Bruce N. Robinson : Range and drop calculator for use with telescopic gun sights
-
Patent:US6196847
06.03.2001 Karunamuni, Anura J. (3147 McCord Blvd., Tallahassee, FL : Educational mathematical apparatus
-
Patent:US6200140
13.03.2001 Steane, Douglas Allan (P) : Double-beam math balance
-
Patent:US6206372
27.03.2001 Harris, Richard Lionel : Magic squares game
-
Patent:US6213779
10.04.2001 Campbell, Jacqueline B. (5915 Walnut St., Philadelphia, PA : Conic section activity boards
-
Patent:US6254713
03.07.2001 Riehle, Harald (P) : Method for producing a composite-like information carrier
-
Patent:US6265651
14.08.2001 Landtroop, Jeffrey : Gauge for selecting musical instrument strings
-
Patent:US6276067
21.08.2001 Hsu, Walter W. : Ellipse drawing/cutting device
-
Patent:US6276069
21.08.2001 Chadwick, Douglas Owen (Kenosha, WI), Brindisi, Mala : Brassiere sizer
-
Patent:US6288315
11.09.2001 Bennett, Morgan (P) : Method and apparatus for musical training
-
Patent:US6308426
30.10.2001 Lim, Hyoun-Gyu : Ellipsograph
-
Patent:US6323410
27.11.2001 Rackow, Daniel (P) : Slide Rule musical scale teaching device
-
Patent:US6329919
11.12.2001 Boies, Stephen (P), Dinkin, Samuel (P) et al. IBM (P) : System and method for providing reservations for restroom use
-
Patent:US6330970
18.12.2001 Whalen, Edward E. : Global time calculator