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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0104962 (1987-10-06) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 23 인용 특허 : 2 |
There is disclosed a drop-in ceiling tile or the like together with method of making the same wherein expanded polystyrene in a large block is cut into substrate sheets approximately two feet by four feet by three-quarters to one inch thick using a hot-wire cutter, which substrate sheet thereafter i
A drop-in ceiling tile or the like made by the method of a. expanding polystyrene to form a cellular block with dimensions at least about two inches by two feet by four feet, b. using a hot-wire cutter to cut said expanded polystyrene block into substrate sheets approximately one inch by two feet by
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