FR550023A - Workbook enhancements - Google Patents

Workbook enhancements

Info

Publication number
FR550023A
FR550023A FR550023DA FR550023A FR 550023 A FR550023 A FR 550023A FR 550023D A FR550023D A FR 550023DA FR 550023 A FR550023 A FR 550023A
Authority
FR
France
Prior art keywords
workbook
enhancements
workbook enhancements
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
Application number
Other languages
French (fr)
Inventor
James Samuel King
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.)
Charles Knight & Co Ltd
Original Assignee
Charles Knight & Co Ltd
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 Charles Knight & Co Ltd filed Critical Charles Knight & Co Ltd
Application granted granted Critical
Publication of FR550023A publication Critical patent/FR550023A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
    • B42F13/00—Filing appliances with means for engaging perforations or slots
    • B42F13/02—Filing appliances with means for engaging perforations or slots with flexible or resilient means
    • B42F13/04—Filing appliances with means for engaging perforations or slots with flexible or resilient means with cords, coils, or chains
FR550023D 1921-09-24 1922-04-11 Workbook enhancements Expired FR550023A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB550023X 1921-09-24

Publications (1)

Publication Number Publication Date
FR550023A true FR550023A (en) 1923-02-24

Family

ID=10472682

Family Applications (1)

Application Number Title Priority Date Filing Date
FR550023D Expired FR550023A (en) 1921-09-24 1922-04-11 Workbook enhancements

Country Status (1)

Country Link
FR (1) FR550023A (en)

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