FR497825A - Improvement in hand drills - Google Patents

Improvement in hand drills

Info

Publication number
FR497825A
FR497825A FR497825DA FR497825A FR 497825 A FR497825 A FR 497825A FR 497825D A FR497825D A FR 497825DA FR 497825 A FR497825 A FR 497825A
Authority
FR
France
Prior art keywords
improvement
hand drills
drills
hand
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
Other languages
French (fr)
Inventor
Samuel Nathan Brimberg
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 FR497825A publication Critical patent/FR497825A/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
    • B21D28/002—Drive of the tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR497825D 1918-06-19 1919-04-04 Improvement in hand drills Expired FR497825A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US497825XA 1918-06-19 1918-06-19

Publications (1)

Publication Number Publication Date
FR497825A true FR497825A (en) 1919-12-18

Family

ID=1533116

Family Applications (1)

Application Number Title Priority Date Filing Date
FR497825D Expired FR497825A (en) 1918-06-19 1919-04-04 Improvement in hand drills

Country Status (1)

Country Link
FR (1) FR497825A (en)

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