BE358569A - - Google Patents

Info

Publication number
BE358569A
BE358569A BE358569A BE358569A BE358569A BE 358569 A BE358569 A BE 358569A BE 358569 A BE358569 A BE 358569A BE 358569 A BE358569 A BE 358569A BE 358569 A BE358569 A BE 358569A
Authority
BE
Belgium
Prior art keywords
writing
parts
combined
calculation
hollow
Prior art date
Application number
BE358569A
Other languages
English (en)
French (fr)
Original Assignee
Ruxton Multi Vider Corp
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 Ruxton Multi Vider Corp filed Critical Ruxton Multi Vider Corp
Publication of BE358569A publication Critical patent/BE358569A/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K29/00—Combinations of writing implements with other articles
    • B43K29/08—Combinations of writing implements with other articles with measuring, computing or indicating devices
    • B43K29/093—Combinations of writing implements with other articles with measuring, computing or indicating devices with calculators

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Pens And Brushes (AREA)
BE358569A 1928-11-10 1929-03-01 BE358569A (enFirst)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US325357XA 1928-11-10 1928-11-10

Publications (1)

Publication Number Publication Date
BE358569A true BE358569A (enFirst) 1929-04-30

Family

ID=21865444

Family Applications (1)

Application Number Title Priority Date Filing Date
BE358569A BE358569A (enFirst) 1928-11-10 1929-03-01

Country Status (2)

Country Link
BE (1) BE358569A (enFirst)
GB (1) GB325357A (enFirst)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656978A (en) * 1950-10-24 1953-10-27 Hafner Theodore Improvement in or relating to slide rule
CN104210280A (zh) * 2013-06-03 2014-12-17 陆琦 一种新颖笔

Also Published As

Publication number Publication date
GB325357A (en) 1930-02-20

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