CA697869A - Sound amplification using foam thermoplastics - Google Patents
Sound amplification using foam thermoplasticsInfo
- Publication number
- CA697869A CA697869A CA697869A CA697869DA CA697869A CA 697869 A CA697869 A CA 697869A CA 697869 A CA697869 A CA 697869A CA 697869D A CA697869D A CA 697869DA CA 697869 A CA697869 A CA 697869A
- Authority
- CA
- Canada
- Prior art keywords
- sound amplification
- thermoplastics
- foam
- foam thermoplastics
- amplification
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA697869T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA697869A true CA697869A (en) | 1964-11-17 |
Family
ID=36008134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA697869A Expired CA697869A (en) | Sound amplification using foam thermoplastics |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA697869A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3720285A (en) * | 1970-06-30 | 1973-03-13 | Rand Org Ltd | Loudspeakers |
US3982607A (en) * | 1975-01-28 | 1976-09-28 | Evans Arnold D | Loudspeaker cabinet having an integrally constructed horn |
US4130174A (en) * | 1977-05-25 | 1978-12-19 | Audioanalyst, Inc. | Loudspeaker |
US4167985A (en) * | 1976-05-13 | 1979-09-18 | Dunlavy John H | Speaker system |
US4185534A (en) * | 1977-06-20 | 1980-01-29 | Les Cove | Stringed musical instruments with foamed solid bodies |
US4290336A (en) * | 1979-03-28 | 1981-09-22 | Peavey Hartley D | Molded guitar structure and method of making same |
US4313362A (en) * | 1980-01-22 | 1982-02-02 | Lieber Thomas G | Guitar construction |
US4369857A (en) * | 1981-01-22 | 1983-01-25 | The Kind Horn Company | Loudspeaker and horn combination |
-
0
- CA CA697869A patent/CA697869A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3720285A (en) * | 1970-06-30 | 1973-03-13 | Rand Org Ltd | Loudspeakers |
US3982607A (en) * | 1975-01-28 | 1976-09-28 | Evans Arnold D | Loudspeaker cabinet having an integrally constructed horn |
US4167985A (en) * | 1976-05-13 | 1979-09-18 | Dunlavy John H | Speaker system |
US4130174A (en) * | 1977-05-25 | 1978-12-19 | Audioanalyst, Inc. | Loudspeaker |
US4185534A (en) * | 1977-06-20 | 1980-01-29 | Les Cove | Stringed musical instruments with foamed solid bodies |
US4290336A (en) * | 1979-03-28 | 1981-09-22 | Peavey Hartley D | Molded guitar structure and method of making same |
US4313362A (en) * | 1980-01-22 | 1982-02-02 | Lieber Thomas G | Guitar construction |
US4369857A (en) * | 1981-01-22 | 1983-01-25 | The Kind Horn Company | Loudspeaker and horn combination |
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