CH605173A5 - - Google Patents

Info

Publication number
CH605173A5
CH605173A5 CH1733274A CH1733274A CH605173A5 CH 605173 A5 CH605173 A5 CH 605173A5 CH 1733274 A CH1733274 A CH 1733274A CH 1733274 A CH1733274 A CH 1733274A CH 605173 A5 CH605173 A5 CH 605173A5
Authority
CH
Switzerland
Application number
CH1733274A
Inventor
Michael Kaitatzidis
Original Assignee
Michael Kaitatzidis
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 Michael Kaitatzidis filed Critical Michael Kaitatzidis
Publication of CH605173A5 publication Critical patent/CH605173A5/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/005—Portable combined drawing-aids including boards
CH1733274A 1974-05-14 1974-12-24 CH605173A5 (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2423306A DE2423306A1 (de) 1974-05-14 1974-05-14 Zeichenvorrichtung

Publications (1)

Publication Number Publication Date
CH605173A5 true CH605173A5 (cs) 1978-09-29

Family

ID=5915483

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1733274A CH605173A5 (cs) 1974-05-14 1974-12-24

Country Status (3)

Country Link
US (1) US4010547A (cs)
CH (1) CH605173A5 (cs)
DE (1) DE2423306A1 (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4611406A (en) * 1984-05-31 1986-09-16 Illinois Tool Works Inc. Enclosure for electrical data input apparatus
DE4127334C2 (de) * 1991-08-19 1993-09-30 Faber Castell A W Schreib- und Zeichenplatte mit Führungselementen
CN110509694B (zh) * 2019-09-09 2021-02-09 金琰哲 一种减少粉笔灰污染的师范类学生用板书练习装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR761214A (cs) * 1934-03-13
US970625A (en) * 1909-10-11 1910-09-20 Vincenc Krajicek T-square.
US1882354A (en) * 1929-09-07 1932-10-11 Celenza Domenico Combination square and ruler
GB519909A (en) * 1938-11-08 1940-04-09 Benjamin John Griffiths Improvements in or relating to drawing boards
US3102340A (en) * 1960-05-20 1963-09-03 Hugh M Rackleff Combination bevel square

Also Published As

Publication number Publication date
DE2423306A1 (de) 1975-11-27
US4010547A (en) 1977-03-08

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Legal Events

Date Code Title Description
PL Patent ceased
PLX Patent declared invalid from date of grant onwards