DK12329C - Eyepiece for Use in Arithmetic Teaching. - Google Patents

Eyepiece for Use in Arithmetic Teaching.

Info

Publication number
DK12329C
DK12329C DK12329DA DK12329C DK 12329 C DK12329 C DK 12329C DK 12329D A DK12329D A DK 12329DA DK 12329 C DK12329 C DK 12329C
Authority
DK
Denmark
Prior art keywords
eyepiece
arithmetic teaching
teaching
arithmetic
Prior art date
Application number
Other languages
Danish (da)
Inventor
Frederik Karl Kristian Holst
Original Assignee
Frederik Karl Kristian Holst
Publication date
Application granted granted Critical
Publication of DK12329C publication Critical patent/DK12329C/en

Links

DK12329D Eyepiece for Use in Arithmetic Teaching. DK12329C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK12329T

Publications (1)

Publication Number Publication Date
DK12329C true DK12329C (en) 1909-07-12

Family

ID=27828289

Family Applications (1)

Application Number Title Priority Date Filing Date
DK12329D DK12329C (en) Eyepiece for Use in Arithmetic Teaching.

Country Status (1)

Country Link
DK (1) DK12329C (en)

Similar Documents

Publication Publication Date Title
DK12329C (en) Eyepiece for Use in Arithmetic Teaching.
DK12002C (en) Device for diving suits.
FR400243A (en) Handle for coffins, trunks and other applications
FR411830A (en) Anti-water hammer valve
FR416806A (en) Remover
CH46263A (en) Steerable sledge
DK10947C (en) Device at Røgrørene i Rørkedler.
DK11233C (en) Device at Sovechaiselonger.
DK10488C (en) Device at Valsemøller.
DK10411C (en) Device at Centrumsbor.
CH50638A (en) Hand slide
DK12642C (en) Device at Solskiver.
DK12678C (en) Device at Savelad.
DK12771C (en) Device at Møllesten.
DK12620C (en) Device at Vadskebrætter.
GB190912439A (en) Improvements in or relating to Xylophones.
DK12746C (en) Rescue device for use in case of fire.
FR398476A (en) Removable sideboard
ES43982A1 (en) Improvements in the armor plates.
ES45697A1 (en) Improvements in the presses.
DK10930C (en) Device by Wheels.
DK12033C (en) Device for locomotives and the like.
DK12273C (en) Device by Ships.
DK11701C (en) Device for bicycles and the like.
DK10929C (en) Device for Pasteurizers.