Benjamin Forstner (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Benjamin Forstner" in English language version.

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espacenet.com

worldwide.espacenet.com

  • CA patent 23548, Benjamin Forstner, "Auger", published 1886-03-06 

lumberjocks.com

  • "Forstner Bit WithOUT Pilot or Spur Center". LumberJocks.com. January 8, 2017. Retrieved January 22, 2019.

salempioneercemetery.org