BE487492A - - Google Patents
Info
- Publication number
- BE487492A BE487492A BE487492DA BE487492A BE 487492 A BE487492 A BE 487492A BE 487492D A BE487492D A BE 487492DA BE 487492 A BE487492 A BE 487492A
- Authority
- BE
- Belgium
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
- B25B15/007—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with blade of flat or substantially flat 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
- F16B23/0015—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 substantially rectangular, e.g. one-slot head
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR966272T | 1948-05-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE487492A true BE487492A (US06272168-20010807-M00014.png) |
Family
ID=9499830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE487492D BE487492A (US06272168-20010807-M00014.png) | 1948-05-04 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE487492A (US06272168-20010807-M00014.png) |
| FR (1) | FR966272A (US06272168-20010807-M00014.png) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4025140A (en) * | 1974-08-02 | 1977-05-24 | Tula Machine Co., Inc. | Locking device for the prongs of an electrical plug |
| US4497225A (en) * | 1983-05-06 | 1985-02-05 | John Vaughn | High torque fastener and driving tool |
-
0
- BE BE487492D patent/BE487492A/xx unknown
-
1948
- 1948-05-04 FR FR966272D patent/FR966272A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR966272A (fr) | 1950-10-05 |
