FR679564A - Improvements to counter-tabulators - Google Patents

Improvements to counter-tabulators

Info

Publication number
FR679564A
FR679564A FR679564DA FR679564A FR 679564 A FR679564 A FR 679564A FR 679564D A FR679564D A FR 679564DA FR 679564 A FR679564 A FR 679564A
Authority
FR
France
Prior art keywords
tabulators
counter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Age Kalsbeek
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR679564A publication Critical patent/FR679564A/en
Expired legal-status Critical Current

Links

FR679564D 1929-06-26 1929-07-30 Improvements to counter-tabulators Expired FR679564A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL347119X 1929-06-26

Publications (1)

Publication Number Publication Date
FR679564A true FR679564A (en) 1930-04-15

Family

ID=19784925

Family Applications (1)

Application Number Title Priority Date Filing Date
FR679564D Expired FR679564A (en) 1929-06-26 1929-07-30 Improvements to counter-tabulators

Country Status (4)

Country Link
BE (1) BE362551A (en)
FR (1) FR679564A (en)
GB (1) GB347119A (en)
NL (1) NL31405C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1011198B (en) * 1931-04-17 1957-06-27 Ibm Deutschland Business machine with device for the formation of balances of positive and negative items
DE1106529B (en) * 1955-11-29 1961-05-10 Ibm Deutschland Arrangement for calculating the number of days between two dates by means of calculating machines controlled by recording media

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1011198B (en) * 1931-04-17 1957-06-27 Ibm Deutschland Business machine with device for the formation of balances of positive and negative items
DE1106529B (en) * 1955-11-29 1961-05-10 Ibm Deutschland Arrangement for calculating the number of days between two dates by means of calculating machines controlled by recording media

Also Published As

Publication number Publication date
GB347119A (en) 1931-04-14
NL31405C (en)
BE362551A (en)

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