FR456873A - Machine à percer les perles fines - Google Patents

Machine à percer les perles fines

Info

Publication number
FR456873A
FR456873A FR456873DA FR456873A FR 456873 A FR456873 A FR 456873A FR 456873D A FR456873D A FR 456873DA FR 456873 A FR456873 A FR 456873A
Authority
FR
France
Prior art keywords
drilling machine
fine pearl
pearl drilling
fine
machine
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
Alfred-Marie-Hilaire Joliot
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.)
ALFRED MARIE HILAIRE JOLIOT
Original Assignee
ALFRED MARIE HILAIRE JOLIOT
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 ALFRED MARIE HILAIRE JOLIOT filed Critical ALFRED MARIE HILAIRE JOLIOT
Application granted granted Critical
Publication of FR456873A publication Critical patent/FR456873A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
    • B28D5/02—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by rotary tools, e.g. drills
    • B28D5/021—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by rotary tools, e.g. drills by drilling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR456873D 1913-04-19 1913-04-19 Machine à percer les perles fines Expired FR456873A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR456873T 1913-04-19

Publications (1)

Publication Number Publication Date
FR456873A true FR456873A (fr) 1913-09-06

Family

ID=1496623

Family Applications (1)

Application Number Title Priority Date Filing Date
FR456873D Expired FR456873A (fr) 1913-04-19 1913-04-19 Machine à percer les perles fines

Country Status (1)

Country Link
FR (1) FR456873A (fr)

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