[Pagina principale]

Rechnerlexikon

Die große Enzyklopädie des mechanischen Rechnens

100.24.209.47 | Log in | Aiuto

  DE  EN  FR  IT 
Pagina principale
Tutte le pagine
Ultime modifiche

Versione stampabile
Discussione

Articolo
Immagine
Brevetto



Pagine speciali
Pfeil.gif Brevetti  Pfeil.gif Stati Uniti  Pfeil.gif 1987

Patente aus den USA 1987


  • Patent:US121687 02.01.1987 Robinson Teasdale : Improvement in calculating-machines
  • Patent:US106999 09.01.1987 Gilbert W. Chapin : Improvement in adding-machines
  • Patent:US4635369 13.01.1987 Powell, Tommie L. (2000 NE. 100th St., Seattle, WA 98125) : Scribing device and method
  • Patent:US4645461 24.02.1987 Mortensen, Vernon J. (Coeur dAlene, ID) : Method for structurally differentiating polynomial functions
  • Patent:US4652728 24.03.1987 Galiana, Patrick (15 avenue Honore Baradat, 64000 Pau, FR) : Wind and course calculator for navigation
  • Patent:USD289058 31.03.1987 M. T. Alberts : Refrigeration Line Size Calculator
  • Patent:US4677893 07.07.1987 Fahnestock, Carl : Quick music notes Slide Rule
  • Patent:US4678893 07.07.1987 Ruble, Marshall V. (Kelley, IA) : Method and means for determining the ease with which a cow may give birth to a calv
  • Patent:US4680453 14.07.1987 Pugh, R. Dell (13622 Pine Villa La., Ft. Myers, FL 33912) : Vehicle performance computer
  • Patent:US209690 01.08.1987 Reuben R. James : Improvement in adding machines
  • Patent:US4688331 25.08.1987 Shen, Xingdi : Ellipsograph
  • Patent:US4713009 15.12.1987 Borenson, Henry (1469 Neshaminy Valley Dr., Bensalem, PA : Teaching apparatus and method for solving algebraic linear equations


In base alla licenza d'uso è permesso citare testualmente parti di rechnerlexikon.de purché se ne citi la fonte.