FR420565A - Perfectionnements apportés aux tés - Google Patents

Perfectionnements apportés aux tés

Info

Publication number
FR420565A
FR420565A FR420565A FR420565DA FR420565A FR 420565 A FR420565 A FR 420565A FR 420565 A FR420565 A FR 420565A FR 420565D A FR420565D A FR 420565DA FR 420565 A FR420565 A FR 420565A
Authority
FR
France
Prior art keywords
tees
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
FR420565A
Other languages
English (en)
Inventor
William John Brooks
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
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR420565A publication Critical patent/FR420565A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/02—Draughting machines or drawing devices for keeping parallelism
    • B43L13/04—Guides for rulers
    • B43L13/048—Guides for rulers with T-squares
FR420565A 1909-09-20 1910-09-20 Perfectionnements apportés aux tés Expired FR420565A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190921402T 1909-09-20

Publications (1)

Publication Number Publication Date
FR420565A true FR420565A (fr) 1911-02-02

Family

ID=32557538

Family Applications (1)

Application Number Title Priority Date Filing Date
FR420565A Expired FR420565A (fr) 1909-09-20 1910-09-20 Perfectionnements apportés aux tés

Country Status (2)

Country Link
FR (1) FR420565A (fr)
GB (1) GB190921402A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2574463A (en) * 1946-12-23 1951-11-13 Chapin Harold Addison T-square securing means
US2566168A (en) * 1949-09-15 1951-08-28 Chapin Harold Addison T-square securing means

Also Published As

Publication number Publication date
GB190921402A (en) 1909-12-23

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