CA540452A - Instrument rentrant a ecrire - Google Patents

Instrument rentrant a ecrire

Info

Publication number: CA540452A
Authority: CA; Canada
Prior art keywords: writing instrument; retractable writing; retractable; instrument; writing
Prior art date: 1957-05-07
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

CA540452A

Other languages

English (en)

Inventor

Wichmann Wilhelm

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.)

Individual

Original Assignee

Individual

Publication date

1957-05-07

1957-05-07 Application granted granted Critical

1957-05-07 Publication of CA540452A publication Critical patent/CA540452A/fr

Status Expired legal-status Critical Current

Links

CA540452A Instrument rentrant a ecrire Expired CA540452A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA540452T

Publications (1)

Publication Number	Publication Date
CA540452A true CA540452A (fr)	1957-05-07

Family

ID=35697591

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA540452A Expired CA540452A (fr)			Instrument rentrant a ecrire

Country Status (1)

Country	Link
CA (1)	CA540452A (fr)

0
- CA CA540452A patent/CA540452A/fr not_active Expired

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