Embragatge (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Embragatge" in Catalan language version.

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low place
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adsabs.harvard.edu

nih.gov

ncbi.nlm.nih.gov

uspto.gov

patft.uspto.gov

  • Frank Wheeler, Clutch and stop mechanism for presses, Embragatge a l'USPTO (anglès), granted Dec. 14, 1891.
  • Samuel Trethewey, Clutch, Embragatge a l'USPTO (anglès), granted Apr. 18, 1893.
  • Fred. R. Allen, Clutch, Embragatge a l'USPTO (anglès), granted Apr. 30, 1912.
  • John J. Zeitz, Friction-clutch, Embragatge a l'USPTO (anglès), granted Dec. 8, 1908.
  • William Lautenschlager, Friction Clutch, Embragatge a l'USPTO (anglès), granted Dec. 19, 1922.
  • Fred. M. Carroll, Key adding device for tabulating machines, Embragatge a l'USPTO (anglès), granted Mar. 8, 1932.
  • Clifton Chisholm, Typesetting machine, Embragatge a l'USPTO (anglès), granted Dec. 6, 1932.
  • Arthur H, Adams, Selecting and typing means for printing telegraphs, Embragatge a l'USPTO (anglès), issued Jun. 13, 1928.

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worldcat.org

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