GB190703283A - A Device for Teaching Arithmetic. - Google Patents

A Device for Teaching Arithmetic.

Info

Publication number
GB190703283A
GB190703283A GB190703283DA GB190703283A GB 190703283 A GB190703283 A GB 190703283A GB 190703283D A GB190703283D A GB 190703283DA GB 190703283 A GB190703283 A GB 190703283A
Authority
GB
United Kingdom
Prior art keywords
teaching arithmetic
teaching
arithmetic
weyrer
schelivsky
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
Inventor
Franz Schelivsky
Franz Weyrer
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
Application granted granted Critical
Publication of GB190703283A publication Critical patent/GB190703283A/en
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

3283. Schelivsky, F., and Weyrer, F. Feb. 9. Rulers.-A rectangular box containing endless ribbons adapted to show through holes in the box, for the purpose of teaching arithmetic, may be used as a ruler.
GB190703283D 1907-02-09 1907-02-09 A Device for Teaching Arithmetic. Expired GB190703283A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190703283T 1907-02-09

Publications (1)

Publication Number Publication Date
GB190703283A true GB190703283A (en) 1907-05-23

Family

ID=32259341

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190703283D Expired GB190703283A (en) 1907-02-09 1907-02-09 A Device for Teaching Arithmetic.

Country Status (1)

Country Link
GB (1) GB190703283A (en)

Similar Documents

Publication Publication Date Title
GB190703283A (en) A Device for Teaching Arithmetic.
GB191303920A (en) An Improved Combination Drawing Tool or Instrument.
GB190914366A (en) Appliance for Ruling Chalk and similar Lines on Black-boards and other Surfaces, particularly suitable for Teachers' use.
GB190719250A (en) Improvements in and relating to Rulers.
GB190800780A (en) A New or Improved Device for Ruling Paper.
GB190626662A (en) Improvements in Recording Devices for Speed Indicators, Gauges and the like.
GB191127804A (en) Improvements in or relating to Combination Tools.
GB190616812A (en) Improvements in and relating to Photographic Surveying.
GB190700454A (en) Improvements in Drags for Soundings and other Hydrographical Purposes.
GB190824788A (en) Improvements in and connected with Washing-boards.
GB190928774A (en) An Improved Non-slipping Ruler.
GB190702368A (en) Improvements in Ruler Devices.
GB190724458A (en) Improvement in Rulers
CH45935A (en) Device for regulating pocket watches
GB190725738A (en) Improvements in and relating to the Hydrocarbon Supply Apparatus of Carburetters.
GB190520733A (en) Improvements in and connected with Apparatus for Grinding Salt and the like.
GB190601694A (en) Instrument for use in Calculating Wages and the like
CH44920A (en) Chalkboard with interchangeable characters
GB190102870A (en) Improvement in Parallel Rulers.
GB190526828A (en) New or Improved Device for Holding a Writing Pad upon a Telephone Desk or its Equivalent.
GB190726613A (en) Improvements in and relating to Odometers.
GB190803326A (en) Improvements in Orthoptics
CA114966A (en) Liquid drawing and measuring apparatus
CA117307A (en) Machine for teaching spelling and arithmetic
GB190722969A (en) Improvements in Appliances for Teaching Reading