NO130302B - - Google Patents

Download PDF

Info

Publication number
NO130302B
NO130302B NO10772A NO10772A NO130302B NO 130302 B NO130302 B NO 130302B NO 10772 A NO10772 A NO 10772A NO 10772 A NO10772 A NO 10772A NO 130302 B NO130302 B NO 130302B
Authority
NO
Norway
Prior art keywords
pin
slots
disc
base
attached
Prior art date
Application number
NO10772A
Other languages
English (en)
Norwegian (no)
Inventor
A Margraf
Original Assignee
Luehr H Vdi Staubtechnik
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
Priority claimed from DE2113062A external-priority patent/DE2113062C3/de
Application filed by Luehr H Vdi Staubtechnik filed Critical Luehr H Vdi Staubtechnik
Publication of NO130302B publication Critical patent/NO130302B/no

Links

Landscapes

  • Toys (AREA)
NO10772A 1971-03-18 1972-01-19 NO130302B (cs)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2113062A DE2113062C3 (de) 1971-03-18 1971-03-18 Verfahren zum Entstauben von Feinststaub enthaltenden Staubgasen mittels Taschen- oder Schlauchfiltern
DE2158461A DE2158461A1 (de) 1971-03-18 1971-11-25 Verfahren zum filtern von staub- oder rauchgasen und filter zur durchfuehrung des verfahrens

Publications (1)

Publication Number Publication Date
NO130302B true NO130302B (cs) 1974-08-12

Family

ID=25760818

Family Applications (1)

Application Number Title Priority Date Filing Date
NO10772A NO130302B (cs) 1971-03-18 1972-01-19

Country Status (1)

Country Link
NO (1) NO130302B (cs)

Similar Documents

Publication Publication Date Title
US2457332A (en) Educational apparatus
US1694405A (en) Educational appliance
NO130302B (cs)
US2949681A (en) Reckoner for demonstrating arithmetical calculations
US20170102729A1 (en) Manual calculating device
US5823783A (en) Rotating pie graph: mathematics learning tool
US1490858A (en) Educational chart
US1450395A (en) Educational appliance
US3716927A (en) Wheel weight demonstrating device
US3186292A (en) Music teaching device
US1023586A (en) Educational device.
CN210925089U (zh) 一种乘法口诀少儿益智学习工具
US2723464A (en) Educational toy counting device
GB325190A (en) Gymnastic apparatus
US1912406A (en) Educational device
RU199241U1 (ru) Цифровой веер к таблице умножения
JPS5846423Y2 (ja) 計算練習板
Duruskari Pedagogical approach in formation interest towards education by hard-to-learn students
US1539194A (en) Educational appliance
US2533954A (en) Calculating machine
US1218931A (en) Apparatus for teaching arithmetic.
RU36553U1 (ru) Прибор для демонстрации деформации прямых зубьев цилиндрических передач
Fehr et al. The Construction and Use of Mathematical Models
KR20230002276U (ko) 시계형 수학 교구
Breslich A Text on Practical Mathematics