CH273100A - Cleaning apparatus, in particular for school blackboards. - Google Patents

Cleaning apparatus, in particular for school blackboards.

Info

Publication number
CH273100A
CH273100A CH273100DA CH273100A CH 273100 A CH273100 A CH 273100A CH 273100D A CH273100D A CH 273100DA CH 273100 A CH273100 A CH 273100A
Authority
CH
Switzerland
Prior art keywords
cleaning apparatus
blackboards
school
school blackboards
cleaning
Prior art date
Application number
Other languages
German (de)
Inventor
Weger Karl
Original Assignee
Weger Karl
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 Weger Karl filed Critical Weger Karl
Publication of CH273100A publication Critical patent/CH273100A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L1/00—Cleaning windows
    • A47L1/06—Hand implements
    • A47L1/15—Cloths, sponges, pads, or the like, e.g. containing cleaning agents
    • 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
    • B43L21/00—Blackboard or slate cleaning devices
CH273100D 1948-07-10 1949-05-19 Cleaning apparatus, in particular for school blackboards. CH273100A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT273100X 1948-07-10

Publications (1)

Publication Number Publication Date
CH273100A true CH273100A (en) 1951-01-31

Family

ID=3670565

Family Applications (1)

Application Number Title Priority Date Filing Date
CH273100D CH273100A (en) 1948-07-10 1949-05-19 Cleaning apparatus, in particular for school blackboards.

Country Status (5)

Country Link
BE (1) BE490083A (en)
CH (1) CH273100A (en)
DE (1) DE864068C (en)
FR (1) FR990062A (en)
NL (1) NL72552C (en)

Also Published As

Publication number Publication date
BE490083A (en)
DE864068C (en) 1953-01-22
NL72552C (en)
FR990062A (en) 1951-09-17

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