Items

• [CJ623AAD], Agreement, Edison Portland Cement Co, North American Portland Cement Co, Thomas Alva Edison, January 8th, 1908
  1908-01-08
• [CJ623AAE], Agreement, Alpha Portland Cement Co, Atlas Portland Cement Co, North American Portland Cement Co, Lehigh Portland Cement Co, December 30th, 1907
  1907-12-30
• [HK402AAS], Agreement, Edison Portland Cement Co, North American Portland Cement Co, Thomas Alva Edison, January 8th, 1908
  1908-01-08
• [HK402AAT], Agreement, Edison Portland Cement Co, North American Portland Cement Co, January 8th, 1908
  1908-01-08
• [HK402AAY], Agreement, Edison Portland Cement Co, North American Portland Cement Co, August 3rd, 1909
  1909-08-03
• [QQ0030001], Legal Pleading, North American Portland Cement Co, Thomas Alva Edison, Alsen's American Portland Cement Works, March 2nd, 1908
  1908-03-02