FR978840A - - Google Patents
Info
- Publication number
- FR978840A FR978840A FR978840DA FR978840A FR 978840 A FR978840 A FR 978840A FR 978840D A FR978840D A FR 978840DA FR 978840 A FR978840 A FR 978840A
- Authority
- FR
- France
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
- E05D13/10—Counterbalance devices
- E05D13/12—Counterbalance devices with springs
- E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR978840A true FR978840A (nl) | 1951-04-18 |
Family
ID=1566874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR978840D Expired FR978840A (nl) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR978840A (nl) |
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0
- FR FR978840D patent/FR978840A/fr not_active Expired