GB101705A - Improved Adding and Subtracting Apparatus. - Google Patents

Improved Adding and Subtracting Apparatus.

Info

Publication number
GB101705A
GB101705A GB1349916A GB1349916A GB101705A GB 101705 A GB101705 A GB 101705A GB 1349916 A GB1349916 A GB 1349916A GB 1349916 A GB1349916 A GB 1349916A GB 101705 A GB101705 A GB 101705A
Authority
GB
United Kingdom
Prior art keywords
improved adding
subtracting apparatus
subtracting
improved
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
GB1349916A
Inventor
Ernst Hermann Frey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Publication of GB101705A publication Critical patent/GB101705A/en
Expired legal-status Critical Current

Links

GB1349916A 1915-10-02 1916-09-22 Improved Adding and Subtracting Apparatus. Expired GB101705A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH101705X 1915-10-02

Publications (1)

Publication Number Publication Date
GB101705A true GB101705A (en) 1917-09-24

Family

ID=32235074

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1349916A Expired GB101705A (en) 1915-10-02 1916-09-22 Improved Adding and Subtracting Apparatus.

Country Status (1)

Country Link
GB (1) GB101705A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544389A (en) * 1951-03-06 Lipkin
US2771245A (en) * 1956-11-20 Calculating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544389A (en) * 1951-03-06 Lipkin
US2771245A (en) * 1956-11-20 Calculating device

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