CS901286A1 - Hard-metal twist drill - Google Patents

Hard-metal twist drill

Info

Publication number
CS901286A1
CS901286A1 CS869012A CS901286A CS901286A1 CS 901286 A1 CS901286 A1 CS 901286A1 CS 869012 A CS869012 A CS 869012A CS 901286 A CS901286 A CS 901286A CS 901286 A1 CS901286 A1 CS 901286A1
Authority
CS
Czechoslovakia
Prior art keywords
hard
twist drill
metal twist
metal
drill
Prior art date
Application number
CS869012A
Other languages
Czech (cs)
Other versions
CS269717B1 (en
Inventor
Jindrich Pavelka
Original Assignee
Jindrich Pavelka
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 Jindrich Pavelka filed Critical Jindrich Pavelka
Priority to CS869012A priority Critical patent/CS269717B1/en
Publication of CS901286A1 publication Critical patent/CS901286A1/en
Publication of CS269717B1 publication Critical patent/CS269717B1/en

Links

CS869012A 1986-12-08 1986-12-08 Tungsten carbide drill bit CS269717B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CS869012A CS269717B1 (en) 1986-12-08 1986-12-08 Tungsten carbide drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS869012A CS269717B1 (en) 1986-12-08 1986-12-08 Tungsten carbide drill bit

Publications (2)

Publication Number Publication Date
CS901286A1 true CS901286A1 (en) 1989-10-13
CS269717B1 CS269717B1 (en) 1990-05-14

Family

ID=5441430

Family Applications (1)

Application Number Title Priority Date Filing Date
CS869012A CS269717B1 (en) 1986-12-08 1986-12-08 Tungsten carbide drill bit

Country Status (1)

Country Link
CS (1) CS269717B1 (en)

Also Published As

Publication number Publication date
CS269717B1 (en) 1990-05-14

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