US3623012A
(en )
1971-11-23
Accounting system with program by example facilities
GB631441A
(https= )
GB1603250A
(en )
1981-11-18
Change calculating apparatus
US3751637A
(en )
1973-08-07
Digital computer and form reader for inventory control and recording cash transactions
CN113326225B
(zh )
2025-07-11
数据印刷控制装置及其方法、存储介质、电子计算器
US2337091A
(en )
1943-12-21
Calculating machine
US1794464A
(en )
1931-03-03
Combined typewriting anb computing machine
US2692726A
(en )
1954-10-26
Calculating machine function
US2063740A
(en )
1936-12-08
Calculating machine
US1302250A
(en )
1919-04-29
Calculating-machine.
JPS6045479B2
(ja )
1985-10-09
釣銭演算装置
JPS57771A
(en )
1982-01-05
Electronic cash register
JPS6258040B2
(https= )
1987-12-03
US2433679A
(en )
1947-12-30
Indian currency computing and recording calculator
US2316520A
(en )
1943-04-13
Accounting machine
US1493867A
(en )
1924-05-13
Combined typewriting and computing machine
US2238508A
(en )
1941-04-15
Cash register
JPS6111832Y2
(https= )
1986-04-14
US1548070A
(en )
1925-08-04
Combined typewriting and computing machine
Mao et al.
1967
Analysis of Investment Returns by Computer
KR20240178903A
(ko )
2024-12-31
스마트 쇼핑카트
US2335343A
(en )
1943-11-30
Accounting machine
JPS56114065A
(en )
1981-09-08
Totalizing system based on time band
GB668841A
(en )
1952-03-26
Improvements in indicator devices for cash registers and like accounting machines
JPS55103669A
(en )
1980-08-08
Electronic cash register