JPS5318079A - Method for perforating board having back trim and its device - Google Patents

Method for perforating board having back trim and its device

Info

Publication number
JPS5318079A
JPS5318079A JP9256176A JP9256176A JPS5318079A JP S5318079 A JPS5318079 A JP S5318079A JP 9256176 A JP9256176 A JP 9256176A JP 9256176 A JP9256176 A JP 9256176A JP S5318079 A JPS5318079 A JP S5318079A
Authority
JP
Japan
Prior art keywords
board
perforating
back trim
work
trim
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.)
Granted
Application number
JP9256176A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5332115B2 (enExample
Inventor
Hitoshi Saito
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
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 true JPS5318079A (en) 1978-02-18
JPS5332115B2 JPS5332115B2 (enExample) 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 (enExample)

Also Published As

Publication number Publication date
JPS5332115B2 (enExample) 1978-09-06

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