FR529357A - Perfectionnements apportés aux porte-mines à mine toujours appointée - Google Patents

Perfectionnements apportés aux porte-mines à mine toujours appointée

Info

Publication number
FR529357A
FR529357A FR529357DA FR529357A FR 529357 A FR529357 A FR 529357A FR 529357D A FR529357D A FR 529357DA FR 529357 A FR529357 A FR 529357A
Authority
FR
France
Prior art keywords
improvements made
mechanical pencils
always pointed
leads
pointed leads
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
English (en)
Inventor
Halsey Dunwoody
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 FR529357A publication Critical patent/FR529357A/fr
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
FR529357D 1921-01-04 1921-01-04 Perfectionnements apportés aux porte-mines à mine toujours appointée Expired FR529357A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR529357T 1921-01-04

Publications (1)

Publication Number Publication Date
FR529357A true FR529357A (fr) 1921-11-26

Family

ID=8922688

Family Applications (1)

Application Number Title Priority Date Filing Date
FR529357D Expired FR529357A (fr) 1921-01-04 1921-01-04 Perfectionnements apportés aux porte-mines à mine toujours appointée

Country Status (1)

Country Link
FR (1) FR529357A (fr)

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