CN102341759A
(zh )
2012-02-01
时钟
US2821135A
(en )
1958-01-28
Automatic time recorder
GB191411188A
(en )
1915-05-06
Improvements in Workmen's or like Time Recorders.
US2671308A
(en )
1954-03-09
Center seconds chronograph
GB776409A
(en )
1957-06-05
Printing unit, especially for record controlled business machines
US1215683A
(en )
1917-02-13
Time-recording register.
GB1151808A
(en )
1969-05-14
Pulse-Operated Line Printer for Electronic Data-Processing Installations.
GB262617A
(enExample )
US1164736A
(en )
1915-12-21
Automatic time-lock for workmen's time-recorders.
US1264220A
(en )
1918-04-30
Type-wheel mechanism.
GB542362A
(enExample )
GB202098A
(enExample )
US2715054A
(en )
1955-08-09
larrabee
JPS644917B2
(enExample )
1989-01-27
JPS641079Y2
(enExample )
1989-01-11
US949816A
(en )
1910-02-22
Coin and time controlled type-writing machine, &c.
SU399157A1
(ru )
Печатающее устройство для счетно-бухгалтерских машин
GB190814309A
(en )
1909-07-05
Improvements in Workman's Time Recorders.
GB814939A
(en )
1959-06-17
Data record perforating device
GB190800970A
(en )
1909-01-14
Improvements in Time, Date, and like Registering Machines.
GB183867A
(en )
1922-07-26
Improvements relating to apparatus for compiling and printing statistics from perforated record cards
GB699815A
(en )
1953-11-18
Improvements in statistical card controlled machines
GB1031514A
(enExample )
GB374075A
(enExample )
GB190924591A
(en )
1910-11-28
Improvements in Time-controlled Coin Operated Locking Device for Typewriters.