FR416842A - Improvements in the manufacture of bolts and screws - Google Patents

Improvements in the manufacture of bolts and screws

Info

Publication number
FR416842A
FR416842A FR416842DA FR416842A FR 416842 A FR416842 A FR 416842A FR 416842D A FR416842D A FR 416842DA FR 416842 A FR416842 A FR 416842A
Authority
FR
France
Prior art keywords
bolts
screws
manufacture
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
William George Allen
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 FR416842A publication Critical patent/FR416842A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/46—Making machine elements bolts, studs, or the like with heads
    • B21K1/463—Making machine elements bolts, studs, or the like with heads with recessed heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR416842D 1910-06-07 1910-06-07 Improvements in the manufacture of bolts and screws Expired FR416842A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR416842T 1910-06-07

Publications (1)

Publication Number Publication Date
FR416842A true FR416842A (en) 1910-10-29

Family

ID=1460304

Family Applications (1)

Application Number Title Priority Date Filing Date
FR416842D Expired FR416842A (en) 1910-06-07 1910-06-07 Improvements in the manufacture of bolts and screws

Country Status (1)

Country Link
FR (1) FR416842A (en)

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