FR437770A - Tour à percer le diamant et matières analogues - Google Patents

Tour à percer le diamant et matières analogues

Info

Publication number
FR437770A
FR437770A FR437770DA FR437770A FR 437770 A FR437770 A FR 437770A FR 437770D A FR437770D A FR 437770DA FR 437770 A FR437770 A FR 437770A
Authority
FR
France
Prior art keywords
lathe
similar materials
diamonds
drilling
drilling diamonds
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
Marius Durand
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 FR437770A publication Critical patent/FR437770A/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)
FR437770D 1911-12-12 1911-12-12 Tour à percer le diamant et matières analogues Expired FR437770A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR437770T 1911-12-12

Publications (1)

Publication Number Publication Date
FR437770A true FR437770A (fr) 1912-04-30

Family

ID=1479350

Family Applications (1)

Application Number Title Priority Date Filing Date
FR437770D Expired FR437770A (fr) 1911-12-12 1911-12-12 Tour à percer le diamant et matières analogues

Country Status (1)

Country Link
FR (1) FR437770A (fr)

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