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Search results for: Lippincott, Alpheus
- Patent:CA54782 28.01.1897 Lippincott, Alpheus (P) : Planimeter
- Patent:GB189622193 01.06.1889 Lippincott, Alpheus (P) : Improvements in and relating to Planimeters or Means for Ascertaining the Areas of Steam Indicator Diagrams and other Figures
- Patent:US569107 06.10.1896 Lippincott, Alpheus (P) : Planimeter