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Search results for: Haddan, Reginald
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Patent:GB191107105
09.08.1911 Haddan, Reginald (P) : Improvements in and relating to Adding Mechanism for Cash Registers and the like
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Patent:GB191213037
22.11.1912 Haddan, Reginald (P) : Improvements in and relating to Adding and Transaction-counting Mechanism for Cash Registers, or Computing or Registering Machines
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Patent:GB191414052
10.06.1915 Haddan, Reginald (P) NCR (P) : Improvements in Adding Machines
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Patent:GB191417785
17.06.1915 Haddan, Reginald (P) NCR (P) : A New or Improved Change Indicator more particularly for Indicating Change in Cash Registers or Calculating Machines