JPS5332115B2 - - Google Patents

Info

Publication number
JPS5332115B2
JPS5332115B2 JP9256176A JP9256176A JPS5332115B2 JP S5332115 B2 JPS5332115 B2 JP S5332115B2 JP 9256176 A JP9256176 A JP 9256176A JP 9256176 A JP9256176 A JP 9256176A JP S5332115 B2 JPS5332115 B2 JP S5332115B2
Authority
JP
Japan
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
JP9256176A
Other languages
Japanese (ja)
Other versions
JPS5318079A (en
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
Priority to JP9256176A priority Critical patent/JPS5318079A/ja
Publication of JPS5318079A publication Critical patent/JPS5318079A/ja
Publication of JPS5332115B2 publication Critical patent/JPS5332115B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • B23B51/05—Drills for trepanning for cutting discs from sheet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Drilling Tools (AREA)
JP9256176A 1976-07-31 1976-07-31 Method for perforating board having back trim and its device Granted JPS5318079A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9256176A JPS5318079A (en) 1976-07-31 1976-07-31 Method for perforating board having back trim and its device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9256176A JPS5318079A (en) 1976-07-31 1976-07-31 Method for perforating board having back trim and its device

Publications (2)

Publication Number Publication Date
JPS5318079A JPS5318079A (en) 1978-02-18
JPS5332115B2 true JPS5332115B2 (OSRAM) 1978-09-06

Family

ID=14057826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9256176A Granted JPS5318079A (en) 1976-07-31 1976-07-31 Method for perforating board having back trim and its device

Country Status (1)

Country Link
JP (1) JPS5318079A (OSRAM)

Also Published As

Publication number Publication date
JPS5318079A (en) 1978-02-18

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