DK109427C - Tavle. - Google Patents

Tavle.

Info

Publication number
DK109427C
DK109427C DK642264A DK642264A DK109427C DK 109427 C DK109427 C DK 109427C DK 642264 A DK642264 A DK 642264A DK 642264 A DK642264 A DK 642264A DK 109427 C DK109427 C DK 109427C
Authority
DK
Denmark
Prior art keywords
blackboard
Prior art date
Application number
DK642264A
Other languages
English (en)
Inventor
Poul Harry Jensen
Original Assignee
Poul Harry Jensen
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 Poul Harry Jensen filed Critical Poul Harry Jensen
Priority to DK642264A priority Critical patent/DK109427C/da
Application granted granted Critical
Publication of DK109427C publication Critical patent/DK109427C/da

Links

DK642264A 1964-04-18 1964-04-18 Tavle. DK109427C (da)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK642264A DK109427C (da) 1964-04-18 1964-04-18 Tavle.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK642264A DK109427C (da) 1964-04-18 1964-04-18 Tavle.

Publications (1)

Publication Number Publication Date
DK109427C true DK109427C (da) 1968-04-22

Family

ID=8148725

Family Applications (1)

Application Number Title Priority Date Filing Date
DK642264A DK109427C (da) 1964-04-18 1964-04-18 Tavle.

Country Status (1)

Country Link
DK (1) DK109427C (da)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1827389A (en) * 1931-05-22 1931-10-13 American Seating Co Metal blackboard sheet
US2838853A (en) * 1956-07-03 1958-06-17 Rohm & Haas Chalkboard having curved writing surface

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1827389A (en) * 1931-05-22 1931-10-13 American Seating Co Metal blackboard sheet
US2838853A (en) * 1956-07-03 1958-06-17 Rohm & Haas Chalkboard having curved writing surface

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