GB530359A
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1940-12-10
Improvements in and relating to line-spacer mechanism for typing machines
US2407195A
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1946-09-03
Typewriting machine
GB191115177A
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1962-07-24
Keyboard interlock control means
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1955-02-22
Paper feeding means in accounting machines
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1922-10-31
Combined typewriting and computing machine
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1932-10-25
Walther flach
GB292619A
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GB543965A
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GB551994A
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1927-09-27
Typewriting machine
GB534146A
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GB191114816A
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1912-03-21
Improvements in Combined Adding and Typewriting Machines.
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1912-11-28
Improvements in or relating to Adding and Listing or like Machines.
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1905-03-30
Improvements in Cash Registers.
GB445540A
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GB919998A
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1963-02-27
Paper carriage control mechanism for accounting machines
GB109562A
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1917-09-20
Improvements in Shift Mechanism for Typewriters.
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1905-06-01
Improvements relating to the Key Action of Cash Registers.
GB497640A
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GB298569A
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1929-08-15
Improved shift mechanism for typewriting machines
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1914-03-05
Improvements in and relating to Adding and Listing Machines.
GB340256A
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GB265122A
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