FR720271A - Typewriter Improvements - Google Patents
Typewriter ImprovementsInfo
- Publication number
- FR720271A FR720271A FR720271DA FR720271A FR 720271 A FR720271 A FR 720271A FR 720271D A FR720271D A FR 720271DA FR 720271 A FR720271 A FR 720271A
- Authority
- FR
- France
- Prior art keywords
- typewriter
- typewriter improvements
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J19/00—Character- or line-spacing mechanisms
- B41J19/18—Character-spacing or back-spacing mechanisms; Carriage return or release devices therefor
- B41J19/34—Escapement-feed character-spacing mechanisms
- B41J19/42—Escapements having two pawls or like detents
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US373731A US1909764A (en) | 1929-06-26 | 1929-06-26 | Typewriting machine |
GB18813/31A GB374296A (en) | 1929-06-26 | 1931-06-30 | Improvements relating to letter-spacing mechanism for typewriting machines |
Publications (1)
Publication Number | Publication Date |
---|---|
FR720271A true FR720271A (en) | 1932-02-17 |
Family
ID=26253619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR720271D Expired FR720271A (en) | 1929-06-26 | 1931-07-16 | Typewriter Improvements |
Country Status (3)
Country | Link |
---|---|
US (1) | US1909764A (en) |
FR (1) | FR720271A (en) |
GB (1) | GB374296A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7637930B2 (en) | 1993-10-04 | 2009-12-29 | Huanchen Li | Medical device and method for treating skin disease |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL120128C (en) * | 1962-04-14 |
-
1929
- 1929-06-26 US US373731A patent/US1909764A/en not_active Expired - Lifetime
-
1931
- 1931-06-30 GB GB18813/31A patent/GB374296A/en not_active Expired
- 1931-07-16 FR FR720271D patent/FR720271A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7637930B2 (en) | 1993-10-04 | 2009-12-29 | Huanchen Li | Medical device and method for treating skin disease |
Also Published As
Publication number | Publication date |
---|---|
US1909764A (en) | 1933-05-16 |
GB374296A (en) | 1932-06-09 |
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