CH44920A - Chalkboard with interchangeable characters - Google Patents

Chalkboard with interchangeable characters

Info

Publication number
CH44920A
CH44920A CH44920A CH44920DA CH44920A CH 44920 A CH44920 A CH 44920A CH 44920 A CH44920 A CH 44920A CH 44920D A CH44920D A CH 44920DA CH 44920 A CH44920 A CH 44920A
Authority
CH
Switzerland
Prior art keywords
chalkboard
interchangeable
characters
interchangeable characters
Prior art date
Application number
CH44920A
Other languages
German (de)
Inventor
Robert Winter
Original Assignee
Robert Winter
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 Robert Winter filed Critical Robert Winter
Publication of CH44920A publication Critical patent/CH44920A/en

Links

CH44920A 1908-10-09 1908-10-09 Chalkboard with interchangeable characters CH44920A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH44920T 1908-10-09

Publications (1)

Publication Number Publication Date
CH44920A true CH44920A (en) 1909-10-01

Family

ID=4277101

Family Applications (1)

Application Number Title Priority Date Filing Date
CH44920A CH44920A (en) 1908-10-09 1908-10-09 Chalkboard with interchangeable characters

Country Status (1)

Country Link
CH (1) CH44920A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056913B (en) * 1956-07-18 1959-05-06 Kaufmann Metallwerk J C F Display board with plate-shaped display elements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056913B (en) * 1956-07-18 1959-05-06 Kaufmann Metallwerk J C F Display board with plate-shaped display elements

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