FR537819A - Improvements in mechanical pencils - Google Patents

Improvements in mechanical pencils

Info

Publication number
FR537819A
FR537819A FR537819DA FR537819A FR 537819 A FR537819 A FR 537819A FR 537819D A FR537819D A FR 537819DA FR 537819 A FR537819 A FR 537819A
Authority
FR
France
Prior art keywords
mechanical pencils
pencils
mechanical
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
Abraham Pollak
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 filed Critical
Application granted granted Critical
Publication of FR537819A publication Critical patent/FR537819A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K21/00—Propelling pencils
    • B43K21/02—Writing-core feeding mechanisms
    • B43K21/08—Writing-core feeding mechanisms with the writing-cores fed by screws
    • B43K21/085—Writing-core feeding mechanisms with the writing-cores fed by screws with a threaded propelling shank
FR537819D 1921-02-02 1921-04-29 Improvements in mechanical pencils Expired FR537819A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US441739A US1391273A (en) 1921-02-02 1921-02-02 Lead-pencil
GB12150/21A GB175923A (en) 1921-02-02 1921-04-27 Improvements in propelling pencils
FR537819T 1921-04-29

Publications (1)

Publication Number Publication Date
FR537819A true FR537819A (en) 1922-05-30

Family

ID=23754089

Family Applications (1)

Application Number Title Priority Date Filing Date
FR537819D Expired FR537819A (en) 1921-02-02 1921-04-29 Improvements in mechanical pencils

Country Status (3)

Country Link
US (1) US1391273A (en)
FR (1) FR537819A (en)
GB (1) GB175923A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467608A (en) * 1947-02-24 1949-04-19 Paul Sussman Illuminating writing instrument

Also Published As

Publication number Publication date
US1391273A (en) 1921-09-20
GB175923A (en) 1922-03-02

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