FR2722142B1 - CONCAVE SURFACE WRITING BOARD - Google Patents

CONCAVE SURFACE WRITING BOARD

Info

Publication number
FR2722142B1
FR2722142B1 FR9408560A FR9408560A FR2722142B1 FR 2722142 B1 FR2722142 B1 FR 2722142B1 FR 9408560 A FR9408560 A FR 9408560A FR 9408560 A FR9408560 A FR 9408560A FR 2722142 B1 FR2722142 B1 FR 2722142B1
Authority
FR
France
Prior art keywords
concave surface
writing board
surface writing
board
concave
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
FR9408560A
Other languages
French (fr)
Other versions
FR2722142A1 (en
Inventor
Jean Jozsa
Henri Puissant
Michel Vovos
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
E ULMANN ET CIE ETS
Original Assignee
E ULMANN ET CIE ETS
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 E ULMANN ET CIE ETS filed Critical E ULMANN ET CIE ETS
Priority to FR9408560A priority Critical patent/FR2722142B1/en
Priority to EP95401663A priority patent/EP0692392A1/en
Publication of FR2722142A1 publication Critical patent/FR2722142A1/en
Application granted granted Critical
Publication of FR2722142B1 publication Critical patent/FR2722142B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/04—Blackboards
    • B43L1/06—Blackboards rigid
FR9408560A 1994-07-11 1994-07-11 CONCAVE SURFACE WRITING BOARD Expired - Fee Related FR2722142B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9408560A FR2722142B1 (en) 1994-07-11 1994-07-11 CONCAVE SURFACE WRITING BOARD
EP95401663A EP0692392A1 (en) 1994-07-11 1995-07-10 Concave surface writing board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9408560A FR2722142B1 (en) 1994-07-11 1994-07-11 CONCAVE SURFACE WRITING BOARD

Publications (2)

Publication Number Publication Date
FR2722142A1 FR2722142A1 (en) 1996-01-12
FR2722142B1 true FR2722142B1 (en) 1996-08-23

Family

ID=9465235

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9408560A Expired - Fee Related FR2722142B1 (en) 1994-07-11 1994-07-11 CONCAVE SURFACE WRITING BOARD

Country Status (2)

Country Link
EP (1) EP0692392A1 (en)
FR (1) FR2722142B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29809398U1 (en) 1998-05-14 1999-09-23 Walter Hebel GmbH & Co, 57548 Kirchen Blackboard with curved surface
DE29910701U1 (en) * 1999-06-18 2000-11-23 Walter Hebel GmbH & Co, 57548 Kirchen Flipchart stand
KR100800178B1 (en) * 2007-06-15 2008-02-01 김민자 Curvature adjust blackboard
CN105363818B (en) * 2015-10-29 2017-09-08 重庆盛镁镁业有限公司 The aluminium alloy extruded board mold of adjustable curved surface inner corner trim
CN105333293B (en) * 2015-10-29 2018-02-09 重庆盛镁镁业有限公司 The aluminium alloy extruded plate of adjustable curved surface inner corner trim
CN105290139B (en) * 2015-10-29 2017-09-08 重庆盛镁镁业有限公司 The aluminium alloy extruded board mold of adjustable external corner curved surface

Family Cites Families (3)

* 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
US3336682A (en) * 1965-04-21 1967-08-22 Child Guidance Toys Inc Educational chalk board

Also Published As

Publication number Publication date
EP0692392A1 (en) 1996-01-17
FR2722142A1 (en) 1996-01-12

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Legal Events

Date Code Title Description
ST Notification of lapse