Items

Items

• 

  [LB032128], Letter from Thomas Alva Edison to Harkness Fire Extinguisher Co, August 22nd, 1889

  1889-08-22
• 

  [LB034284], Letter from Alfred Ord Tate to Harkness Fire Extinguisher Co, November 27th, 1889

  1889-11-27
• 

  [LB039280], Letter from West Orange Laboratory to Harkness Fire Extinguisher Co, April 3rd, 1890

  1890-04-03
• 

  [LB041007], Letter from Alfred Ord Tate to Harkness Fire Extinguisher Co, May 13th, 1890

  1890-05-13
• 

  [LB048148], Letter from West Orange Laboratory to Harkness Fire Extinguisher Co, March 6th, 1891

  1891-03-06
• 

  [LB049179], Letter from Thomas Alva Edison to Harkness Fire Extinguisher Co, May 1st, 1891

  1891-05-01
• 

  [LB056186], Letter from Thomas Alva Edison to Harkness Fire Extinguisher Co, March 26th, 1892

  1892-03-26
• 

  [LB056238], Letter from Alfred Ord Tate to Harkness Fire Extinguisher Co, April 5th, 1892

  1892-04-05