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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0011701 (1993-02-01) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 19 인용 특허 : 0 |
A one-piece, durable plastic block for forming concrete structures wherein uncured concrete is poured into the block which has been laid in brick-like fashion with a plurality of similar blocks, and where the block becomes an integral part of the resulting concrete structure providing strength there
A one-piece, durable plastic device for forming concrete structures wherein uncured concrete is poured into the device and the device becomes an integral part of the resulting concrete structure providing strength thereto, the device comprising: (a) a generally rectangular shaped block having an ope
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