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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0374024 (1982-05-03) |
우선권정보 | FR-0009041 (1981-05-06) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 8 인용 특허 : 2 |
The play pen of the invention has a body including a peripheric frame formed of parallel side-members and extending between corner posts (4), each side-member including a rigid core which is covered by a flexible plastic tube extending beyond the core ends and fixed (at 9) to posts (4) in order to e
A play pen including a peripheric frame formed of corner posts and side-members extending between said corner posts, wheels mounted at the bottom of said frame, and hollow flexible elements connecting said side-members to said posts, each of said connecting elements having end portions fitted on adj
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