GB411278A
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Improvements in and relating to shock absorbing mechanism for typewriting machines
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GB397854A
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Improvements in and relating to billing-typewriters or like machines
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US1939316A
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Combined typewriting and computing machine
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US1932646A
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Combined typewriting and computing machine
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US1943548A
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Combined typewriting and computing machine
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US1928417A
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Tabulating mechanism
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GB373457A
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Line space lock release mechanism for typewriting adding machines
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US1930433A
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Line space lock release mechanism
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GB358675A
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Improvements in writing adding machines
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US1950341A
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Rheostat
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US1950402A
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Work carrier
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GB339611A
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Improvements relating to flat platens for typewriters
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GB334713A
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Improved platen equipment for typewriters
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GB333769A
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Improvements relating to line-spacing mechanism for typewriters
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GB333866A
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Improvements in flat platen typewriters
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GB325432A
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Improvements in typewriting machines
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DE547280C
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Flat panel typewriter
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DE542955C
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Flat plate typewriter with tabulator
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GB317916A
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Improvements in typewriters and like machines of the flatplaten type
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GB318298A
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Improvements in tabulating mechanism for typewriting machines
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