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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0197380 (1988-05-23) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 16 인용 특허 : 5 |
An umbrella with a hollow interior shaft with a canopy attached at the top portion of said shaft. An audio signal source is attached to the shaft of the umbrella and speaker assemblies are attached to the inside of the canopy of the umbrella. The speaker assemblies are electronically coupled to the
An umbrella comprising: an elongated shaft having a top portion, and a bottom portion; a canopy having an outside, an inside, and a number of flexible support ribs extending from said shaft at the center of said canopy outwardly to the edges of said canopy, said canopy being attached to the top port
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