CA1219555A - Crayon mecanique (porte-mine) - Google Patents

Crayon mecanique (porte-mine)

Info

Publication number
CA1219555A
CA1219555A CA000471881A CA471881A CA1219555A CA 1219555 A CA1219555 A CA 1219555A CA 000471881 A CA000471881 A CA 000471881A CA 471881 A CA471881 A CA 471881A CA 1219555 A CA1219555 A CA 1219555A
Authority
CA
Canada
Prior art keywords
lead
advance
grooves
spaced apart
retract mechanism
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
CA000471881A
Other languages
English (en)
Inventor
Curtis L. Malm
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.)
Berol Corp
Original Assignee
Gillette Co LLC
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 Gillette Co LLC filed Critical Gillette Co LLC
Application granted granted Critical
Publication of CA1219555A publication Critical patent/CA1219555A/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

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
CA000471881A 1984-02-09 1985-01-10 Crayon mecanique (porte-mine) Expired CA1219555A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57873484A 1984-02-09 1984-02-09
US578,734 1984-02-09

Publications (1)

Publication Number Publication Date
CA1219555A true CA1219555A (fr) 1987-03-24

Family

ID=24314080

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000471881A Expired CA1219555A (fr) 1984-02-09 1985-01-10 Crayon mecanique (porte-mine)

Country Status (4)

Country Link
EP (1) EP0151456B1 (fr)
JP (1) JPS60233000A (fr)
CA (1) CA1219555A (fr)
DE (1) DE3577825D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210587B (en) * 1987-10-20 1992-04-01 Mitsubishi Pencil Co A mechanical pencil.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA463498A (fr) * 1950-03-07 E. Wehn Charles Stylomine
DE478303C (de) * 1929-06-22 Huck Fa H Schreibstift
US1627602A (en) * 1921-04-29 1927-05-10 Byron B Goldsmith Mechanical pencil
DE454572C (de) * 1925-03-10 1928-01-12 Felss Geb Schreibstift
CH266391A (de) * 1948-03-09 1950-01-31 Gyger Fritz Minenstift.
JPS5040329U (fr) * 1973-08-06 1975-04-24
US4136980A (en) * 1977-04-12 1979-01-30 Tae Yoon Leem Mechanical pencil
JPS55144086U (fr) * 1979-04-03 1980-10-16

Also Published As

Publication number Publication date
EP0151456A2 (fr) 1985-08-14
DE3577825D1 (de) 1990-06-28
EP0151456A3 (en) 1987-02-04
EP0151456B1 (fr) 1990-05-23
JPS60233000A (ja) 1985-11-19
JPH0557920B2 (fr) 1993-08-25

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Legal Events

Date Code Title Description
MKEX Expiry