FR594729A - Machine semi-automatique perfectionnée à ébaucher, tailler et polir les pierres précieuses - Google Patents

Machine semi-automatique perfectionnée à ébaucher, tailler et polir les pierres précieuses

Info

Publication number
FR594729A
FR594729A FR594729DA FR594729A FR 594729 A FR594729 A FR 594729A FR 594729D A FR594729D A FR 594729DA FR 594729 A FR594729 A FR 594729A
Authority
FR
France
Prior art keywords
semi
automatic
roughing
cutting
precious stones
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
Jules-Ephraim Cohen
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 FR594729A publication Critical patent/FR594729A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/16—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of diamonds; of jewels or the like; Diamond grinders' dops; Dop holders or tongs
FR594729D 1924-06-04 1924-06-04 Machine semi-automatique perfectionnée à ébaucher, tailler et polir les pierres précieuses Expired FR594729A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR594729T 1924-06-04

Publications (1)

Publication Number Publication Date
FR594729A true FR594729A (fr) 1925-09-17

Family

ID=8966390

Family Applications (1)

Application Number Title Priority Date Filing Date
FR594729D Expired FR594729A (fr) 1924-06-04 1924-06-04 Machine semi-automatique perfectionnée à ébaucher, tailler et polir les pierres précieuses

Country Status (1)

Country Link
FR (1) FR594729A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109268A (en) * 1960-12-06 1963-11-05 Hillard A Printz Gem cutter's dop
BE1002954A5 (fr) * 1987-11-20 1991-10-01 Diamond Trading Co Ltd Procede de traitement d'une facette d'une pierre precieuse.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109268A (en) * 1960-12-06 1963-11-05 Hillard A Printz Gem cutter's dop
BE1002954A5 (fr) * 1987-11-20 1991-10-01 Diamond Trading Co Ltd Procede de traitement d'une facette d'une pierre precieuse.

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