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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0748688 (1985-06-25) |
우선권정보 | JP-0097884 (1984-06-28); JP-0136345 (1984-06-30) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 34 인용 특허 : 4 |
A gymnastic floor structure comprising a panel board assembly, lower floor members spacedly secured to the bottom of the panel board assembly and placed on the gymnasium base floor, an upper floor member, and tighteners which prevent panels of the board assembly from loosening in the connecting dire
A gymnastic floor structure comprising a panel board assembly composed of a plurality of rectangular unit panel boards closely connected with one another on a flat plane and connected by connecting means, lower floor members composed of a plurality of elastic support members which are spacedly secur
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