FR924280A - Method and apparatus for making twist drills - Google Patents

Method and apparatus for making twist drills

Info

Publication number
FR924280A
FR924280A FR924280DA FR924280A FR 924280 A FR924280 A FR 924280A FR 924280D A FR924280D A FR 924280DA FR 924280 A FR924280 A FR 924280A
Authority
FR
France
Prior art keywords
twist drills
making twist
making
drills
twist
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
Harry Walter Delaney
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 FR924280A publication Critical patent/FR924280A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
FR924280D 1946-03-20 1946-03-20 Method and apparatus for making twist drills Expired FR924280A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR924280T 1946-03-20

Publications (1)

Publication Number Publication Date
FR924280A true FR924280A (en) 1947-07-31

Family

ID=9439315

Family Applications (1)

Application Number Title Priority Date Filing Date
FR924280D Expired FR924280A (en) 1946-03-20 1946-03-20 Method and apparatus for making twist drills

Country Status (1)

Country Link
FR (1) FR924280A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2096999A1 (en) * 1970-07-24 1972-03-03 Ory Gaston

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2096999A1 (en) * 1970-07-24 1972-03-03 Ory Gaston

Similar Documents

Publication Publication Date Title
FR926927A (en) Grinding method and apparatus
FR968325A (en) Method and apparatus for finishing toothed wheels
FR996274A (en) Method and apparatus for twisting yarns
FR924280A (en) Method and apparatus for making twist drills
FR939999A (en) Method and apparatus for peeling veneer lumber
FR966801A (en) Method and apparatus for metallization
FR942169A (en) Method and apparatus for drying yarns in coils
FR944644A (en) Grinding method and apparatus
CH269148A (en) Apparatus for stretching threads.
FR925919A (en) Method and apparatus for making mothballs
FR926416A (en) Process for transforming machine tools and device allowing this transformation
FR1002482A (en) Method and apparatus for processing beet seeds
FR921682A (en) Advanced welding process and apparatus
FR951562A (en) Advanced refrigeration method and apparatus
FR941774A (en) Grinding method and apparatus
FR55035E (en) Combustion process and apparatus
FR932507A (en) Method and apparatus for cooking milk
FR1003034A (en) Method and apparatus for making wigs
FR937544A (en) Distillation process and apparatus
AT175505B (en) Device for grinding twist drills
FR920331A (en) Method and apparatus for pleating fabrics
FR951234A (en) Method and apparatus for welding, in particular of radiators
CH253312A (en) Device for grinding twist drills.
FR926952A (en) Method and apparatus for finishing cogwheels by generation
FR931033A (en) Fermentation control method and apparatus