FR512474A - Punching machine for building materials - Google Patents

Punching machine for building materials

Info

Publication number
FR512474A
FR512474A FR512474A FR512474DA FR512474A FR 512474 A FR512474 A FR 512474A FR 512474 A FR512474 A FR 512474A FR 512474D A FR512474D A FR 512474DA FR 512474 A FR512474 A FR 512474A
Authority
FR
France
Prior art keywords
building materials
punching machine
punching
machine
building
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
FR512474A
Other languages
French (fr)
Inventor
George Paul Thomas
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 FR512474A publication Critical patent/FR512474A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • B21D28/265—Perforating, i.e. punching holes in sheets or flat parts with relative movement of sheet and tools enabling the punching of holes in predetermined locations of the sheet, e.g. holes punching with template

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR512474A 1920-03-27 1920-03-27 Punching machine for building materials Expired FR512474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR512474T 1920-03-27

Publications (1)

Publication Number Publication Date
FR512474A true FR512474A (en) 1921-01-24

Family

ID=8912968

Family Applications (1)

Application Number Title Priority Date Filing Date
FR512474A Expired FR512474A (en) 1920-03-27 1920-03-27 Punching machine for building materials

Country Status (1)

Country Link
FR (1) FR512474A (en)

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