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(en )
1956-04-10
golemon
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1938-12-13
Cash register
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1941-11-04
Adding and listing machine
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(en )
1920-02-17
Computing-machine
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(en )
1916-07-25
Adding and listing machine.
GB417991A
(cg-RX-API-DMAC10.html )
1900-01-01
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(en )
1961-08-01
fleming
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1970-11-03
Totalizer control mechanism
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1964-06-02
tingley
GB293080A
(cg-RX-API-DMAC10.html )
GB348105A
(cg-RX-API-DMAC10.html )
GB608989A
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1948-09-23
Improvements in calculating machines
GB531081A
(cg-RX-API-DMAC10.html )
GB438369A
(cg-RX-API-DMAC10.html )
GB414507A
(cg-RX-API-DMAC10.html )
GB506500A
(cg-RX-API-DMAC10.html )
GB635580A
(cg-RX-API-DMAC10.html )
GB434369A
(cg-RX-API-DMAC10.html )
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(cg-RX-API-DMAC10.html )
GB703886A
(cg-RX-API-DMAC10.html )
1900-01-01
GB550874A
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1943-01-28
Improvements in or relating to statistical machines
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(cg-RX-API-DMAC10.html )
GB451011A
(cg-RX-API-DMAC10.html )
GB173219A
(cg-RX-API-DMAC10.html )
GB217523A
(en )
1924-06-10
Improvements in total-printing mechanism for use in recordcard-controlled statistical machines