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CH22240A - blackboard - Google Patents

blackboard

Info

Publication number
CH22240A
CH22240A CH22240A CH22240DA CH22240A CH 22240 A CH22240 A CH 22240A CH 22240 A CH22240 A CH 22240A CH 22240D A CH22240D A CH 22240DA CH 22240 A CH22240 A CH 22240A
Authority
CH
Switzerland
Prior art keywords
blackboard
Prior art date
Application number
CH22240A
Other languages
German (de)
Inventor
J Scheck
Original Assignee
J Scheck
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 J Scheck filed Critical J Scheck
Publication of CH22240A publication Critical patent/CH22240A/en

Links

CH22240A 1901-09-28 1901-09-28 blackboard CH22240A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH22240T 1901-09-28

Publications (1)

Publication Number Publication Date
CH22240A true CH22240A (en) 1902-04-30

Family

ID=4228754

Family Applications (1)

Application Number Title Priority Date Filing Date
CH22240A CH22240A (en) 1901-09-28 1901-09-28 blackboard

Country Status (1)

Country Link
CH (1) CH22240A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739772C (en) * 1942-07-24 1943-10-16 Carl August Juengst Large load-bearing construction panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739772C (en) * 1942-07-24 1943-10-16 Carl August Juengst Large load-bearing construction panel

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