NL7401845A - - Google Patents

Info

Publication number
NL7401845A
NL7401845A NL7401845A NL7401845A NL7401845A NL 7401845 A NL7401845 A NL 7401845A NL 7401845 A NL7401845 A NL 7401845A NL 7401845 A NL7401845 A NL 7401845A NL 7401845 A NL7401845 A NL 7401845A
Authority
NL
Netherlands
Application number
NL7401845A
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
Priority claimed from DE19732306361 external-priority patent/DE2306361A1/de
Priority claimed from DE19732360465 external-priority patent/DE2360465A1/de
Application filed filed Critical
Publication of NL7401845A publication Critical patent/NL7401845A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
NL7401845A 1973-02-09 1974-02-11 NL7401845A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19732306361 DE2306361A1 (de) 1973-02-09 1973-02-09 Hohlbohrkrone
DE19732360465 DE2360465A1 (de) 1973-12-05 1973-12-05 Hohlbohrkrone

Publications (1)

Publication Number Publication Date
NL7401845A true NL7401845A (de) 1974-08-13

Family

ID=25764666

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7401845A NL7401845A (de) 1973-02-09 1974-02-11

Country Status (8)

Country Link
JP (1) JPS49112801A (de)
AT (1) AT330440B (de)
CH (1) CH585339A5 (de)
FR (1) FR2217136B1 (de)
GB (1) GB1465363A (de)
IT (1) IT1007281B (de)
NL (1) NL7401845A (de)
SE (1) SE406950B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE92815T1 (de) * 1989-06-14 1993-08-15 Swarovski Tyrolit Schleif Hohlbohrer.

Also Published As

Publication number Publication date
JPS49112801A (de) 1974-10-28
AT330440B (de) 1976-06-25
ATA91674A (de) 1975-09-15
FR2217136B1 (de) 1978-11-10
IT1007281B (it) 1976-10-30
FR2217136A1 (de) 1974-09-06
CH585339A5 (de) 1977-02-28
GB1465363A (en) 1977-02-23
SE406950B (sv) 1979-03-05

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Legal Events

Date Code Title Description
BV The patent application has lapsed