FR541811A - Screwdriver - Google Patents

Screwdriver

Info

Publication number
FR541811A
FR541811A FR541811DA FR541811A FR 541811 A FR541811 A FR 541811A FR 541811D A FR541811D A FR 541811DA FR 541811 A FR541811 A FR 541811A
Authority
FR
France
Prior art keywords
screwdriver
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
James Evan Mills
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
Application granted granted Critical
Publication of FR541811A publication Critical patent/FR541811A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
    • B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
    • B25B23/105—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit
    • B25B23/106—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit the driving bit being a blade

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR541811D 1921-09-29 1921-09-29 Screwdriver Expired FR541811A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR541811T 1921-09-29

Publications (1)

Publication Number Publication Date
FR541811A true FR541811A (en) 1922-08-02

Family

ID=8930423

Family Applications (1)

Application Number Title Priority Date Filing Date
FR541811D Expired FR541811A (en) 1921-09-29 1921-09-29 Screwdriver

Country Status (1)

Country Link
FR (1) FR541811A (en)

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