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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0182796 (1994-01-14) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 18 인용 특허 : 0 |
A swimming training device having a swimming cap removably contained therein a receiving device. The receiving device can pickup one of a multiple of signals from a transmitter controlled by a swimming coach. The cap has a compartment that can be sealed releasably, so that water is kept out during s
A swimming cap training device for receiving electromagnetic waves broadcast over a plurality of frequencies, the device comprising: (a) a cap formed of a flexible material having a sealable pouch formed along the inner surface therein; (b) a band of adjustable length for mounting a receiver unit th
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