• Reference
    GKL10/3/9/2
  • Title
    United States Patent Office. Frank Walker of Tombstone, Arizona Territory, assignor to the Keystone Water Meter Manufacturing Company, (Limited) of Philadelphia, Pennsylvania. Water meter specification forming part of Letters Patent No. 302,179.
  • Date free text
    15 Jul 1884
  • Production date
    From: 1884 To: 1884
  • Level of description
    item