FR812074A - Improvements to electric wave filters - Google Patents
Improvements to electric wave filtersInfo
- Publication number
- FR812074A FR812074A FR812074DA FR812074A FR 812074 A FR812074 A FR 812074A FR 812074D A FR812074D A FR 812074DA FR 812074 A FR812074 A FR 812074A
- Authority
- FR
- France
- Prior art keywords
- electric wave
- wave filters
- filters
- electric
- wave
- 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
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
- A41B9/00—Undergarments
- A41B9/06—Undershirts; Chemises
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US475275XA | 1935-07-02 | 1935-07-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR812074A true FR812074A (en) | 1937-05-29 |
Family
ID=21949481
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR475275D Expired FR475275A (en) | 1913-07-17 | 1914-07-17 | Underwear |
FR812074D Expired FR812074A (en) | 1935-07-02 | 1936-06-26 | Improvements to electric wave filters |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR475275D Expired FR475275A (en) | 1913-07-17 | 1914-07-17 | Underwear |
Country Status (3)
Country | Link |
---|---|
FR (2) | FR475275A (en) |
GB (1) | GB475275A (en) |
NL (1) | NL45266C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1261251B (en) * | 1962-02-13 | 1968-02-15 | Telefunken Patent | Mechanical frequency filter |
-
1914
- 1914-07-17 FR FR475275D patent/FR475275A/en not_active Expired
-
1936
- 1936-05-22 GB GB14547/36A patent/GB475275A/en not_active Expired
- 1936-05-29 NL NL77981A patent/NL45266C/xx active
- 1936-06-26 FR FR812074D patent/FR812074A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL45266C (en) | 1939-03-15 |
FR475275A (en) | 1915-05-03 |
GB475275A (en) | 1937-11-17 |
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