ATA218286A - SCREWDRIVER - Google Patents

SCREWDRIVER

Info

Publication number
ATA218286A
ATA218286A AT218286A AT218286A ATA218286A AT A218286 A ATA218286 A AT A218286A AT 218286 A AT218286 A AT 218286A AT 218286 A AT218286 A AT 218286A AT A218286 A ATA218286 A AT A218286A
Authority
AT
Austria
Prior art keywords
screwdriver
Prior art date
Application number
AT218286A
Other languages
German (de)
Other versions
AT384981B (en
Original Assignee
Schildberg Heinrich Ing
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 Schildberg Heinrich Ing filed Critical Schildberg Heinrich Ing
Priority to AT218286A priority Critical patent/AT384981B/en
Publication of ATA218286A publication Critical patent/ATA218286A/en
Application granted granted Critical
Publication of AT384981B publication Critical patent/AT384981B/en

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
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
AT218286A 1986-08-13 1986-08-13 SCREWDRIVER AT384981B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT218286A AT384981B (en) 1986-08-13 1986-08-13 SCREWDRIVER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT218286A AT384981B (en) 1986-08-13 1986-08-13 SCREWDRIVER

Publications (2)

Publication Number Publication Date
ATA218286A true ATA218286A (en) 1987-07-15
AT384981B AT384981B (en) 1988-02-10

Family

ID=3529462

Family Applications (1)

Application Number Title Priority Date Filing Date
AT218286A AT384981B (en) 1986-08-13 1986-08-13 SCREWDRIVER

Country Status (1)

Country Link
AT (1) AT384981B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059161A (en) * 1973-12-26 1977-11-22 Deere & Company Tillage apparatus and improved blade therefor
US4136744A (en) * 1977-07-12 1979-01-30 The University Of Kentucky Research Foundation Ground driven power tillage device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR954633A (en) * 1950-01-04
US4191228A (en) * 1978-06-07 1980-03-04 Fenton John W Tool assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059161A (en) * 1973-12-26 1977-11-22 Deere & Company Tillage apparatus and improved blade therefor
US4136744A (en) * 1977-07-12 1979-01-30 The University Of Kentucky Research Foundation Ground driven power tillage device

Also Published As

Publication number Publication date
AT384981B (en) 1988-02-10

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties