FR637549A - Machine à percer les perles - Google Patents

Machine à percer les perles

Info

Publication number
FR637549A
FR637549A FR637549DA FR637549A FR 637549 A FR637549 A FR 637549A FR 637549D A FR637549D A FR 637549DA FR 637549 A FR637549 A FR 637549A
Authority
FR
France
Prior art keywords
drilling machine
bead
bead drilling
machine
drilling
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
Lucien Ferir
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 FR637549A publication Critical patent/FR637549A/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)
FR637549D 1927-07-13 1927-07-13 Machine à percer les perles Expired FR637549A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR637549T 1927-07-13

Publications (1)

Publication Number Publication Date
FR637549A true FR637549A (fr) 1928-05-02

Family

ID=8995367

Family Applications (1)

Application Number Title Priority Date Filing Date
FR637549D Expired FR637549A (fr) 1927-07-13 1927-07-13 Machine à percer les perles

Country Status (1)

Country Link
FR (1) FR637549A (fr)

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