GB407253A - Improvements in writing implements - Google Patents
Improvements in writing implementsInfo
- Publication number
- GB407253A GB407253A GB22310/33A GB2231033A GB407253A GB 407253 A GB407253 A GB 407253A GB 22310/33 A GB22310/33 A GB 22310/33A GB 2231033 A GB2231033 A GB 2231033A GB 407253 A GB407253 A GB 407253A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lead
- sides
- section
- equal
- faces
- 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
Links
- 239000000428 dust Substances 0.000 abstract 1
Classifications
- 
        - B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
 
- 
        - B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
- B43K19/02—Pencils with graphite; Coloured pencils
 
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| US407253XA | 1932-08-24 | 1932-08-24 | 
Publications (1)
| Publication Number | Publication Date | 
|---|---|
| GB407253A true GB407253A (en) | 1934-03-15 | 
Family
ID=21912593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| GB22310/33A Expired GB407253A (en) | 1932-08-24 | 1933-03-10 | Improvements in writing implements | 
Country Status (5)
| Country | Link | 
|---|---|
| BE (1) | BE397990A (en:Method) | 
| DE (1) | DE701820C (en:Method) | 
| FR (1) | FR753519A (en:Method) | 
| GB (1) | GB407253A (en:Method) | 
| NL (1) | NL36569C (en:Method) | 
- 
        0
        - BE BE397990D patent/BE397990A/xx unknown
- NL NL36569D patent/NL36569C/xx active
 
- 
        1933
        - 1933-03-10 GB GB22310/33A patent/GB407253A/en not_active Expired
- 1933-03-19 DE DE1933W0093352 patent/DE701820C/de not_active Expired
- 1933-03-31 FR FR753519D patent/FR753519A/fr not_active Expired
 
Also Published As
| Publication number | Publication date | 
|---|---|
| DE701820C (de) | 1941-01-24 | 
| NL36569C (en:Method) | |
| BE397990A (en:Method) | |
| FR753519A (fr) | 1933-10-18 | 
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