Items

• [NB148AAA], Technical Note, Ernest Kellogg, June 30th, 1898
  1898-06-30
• [NB148AAB], Technical Note, Ernest Kellogg, July 7th, 1898
  1898-07-07
• [NB148AAC], Technical Note, Ernest Kellogg, June 30th, 1898
  1898-06-30
• [NB148AAD], Technical Note, Ernest Kellogg, July 19th, 1898
  1898-07-19
• [NB148AAE], Technical Note, Ernest Kellogg, July 1898
  1898-07-00
• [NM033009], Technical Note, Thomas Alva Edison, Ernest Kellogg, September 1898
  1898-09-00
• [NS98AFE], Technical Note, Ernest Kellogg, June 29th, 1898
  1898-06-29
• [NS98AFG], Technical Note, Ernest Kellogg, August 1898
  1898-08-00