CA2238571C
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2002-03-26
Synchronization of cryptographic keys between two modules of a distributed system
JP2000105845A
(ja )
2000-04-11
クロ―ズドシステムの仮想郵便料金メ―タ―
CN1234573A
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1999-11-10
包括防止篡改从邮资计费仪发送到打印机的打印数据的邮资打印系统
GB750454A
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1956-06-13
Improvements in or relating to tape controlled typewriter
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1997-11-04
Method and system for securing operation of a printing module
GB498395A
(en )
1939-01-06
Improvements in or relating to record-card-controlled printing mechanism
GB1055297A
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1967-01-18
Improvements in or relating to calculating and accounting machines
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1962-01-09
Tiotttnr tttf print-
GB462686A
(enExample )
GB1398666A
(en )
1975-06-25
Type action arrangement
USRE21051E
(en )
1939-02-04
Accounting machine
US1657696A
(en )
1928-01-31
A cobpobation
US2730039A
(en )
1956-01-10
werner
GB465890A
(enExample )
US2170183A
(en )
1939-08-22
Cash register and accounting
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(en )
1934-12-11
H kaufmann
GB336594A
(enExample )
JPH11328463A
(ja )
1999-11-30
プリンタ―のエラ―を安全に報告する郵便証印印刷システム
GB407054A
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US1156258A
(en )
1915-10-12
Cash-register.
GB228184A
(enExample )
GB501443A
(enExample )
GB530120A
(enExample )
GB268839A
(enExample )
GB474051A
(en )
1937-10-25
Improvements in or relating to cash registers and similar accounting machines