CH251898A - Porte-mines. - Google Patents
Porte-mines.Info
- Publication number
- CH251898A CH251898A CH251898DA CH251898A CH 251898 A CH251898 A CH 251898A CH 251898D A CH251898D A CH 251898DA CH 251898 A CH251898 A CH 251898A
- Authority
- CH
- Switzerland
- Prior art keywords
- mechanical pencils
- pencils
- mechanical
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/02—Writing-core feeding mechanisms
- B43K21/04—Writing-core feeding mechanisms with the writing-cores brought into position by gravity
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D11/00—Clutches in which the members have interengaging parts
- F16D11/08—Clutches in which the members have interengaging parts actuated by moving a non-rotating part axially
- F16D11/12—Clutches in which the members have interengaging parts actuated by moving a non-rotating part axially with clutching members movable otherwise than only axially
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH938026X | 1945-12-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH251898A true CH251898A (fr) | 1947-11-30 |
Family
ID=4549262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH251898D CH251898A (fr) | 1945-12-28 | 1945-12-28 | Porte-mines. |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH251898A (fr) |
FR (1) | FR938026A (fr) |
-
1945
- 1945-12-28 CH CH251898D patent/CH251898A/fr unknown
-
1946
- 1946-12-20 FR FR938026D patent/FR938026A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR938026A (fr) | 1948-09-02 |
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