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POLY PROPYLENE FOAM SHEETS BACKGROUND OF THE INVENTION 1. Field of Invention
| Content Provider | Semantic Scholar |
|---|---|
| Author | Park, John Jongho |
| Copyright Year | 2017 |
| Abstract | 3,637,458 1/1972 Parrish .................................. 264/45 3,787,443 1/1974 Parrish .... 3,787,543 1/1974 Parrish ........ ... 521A143 3,89,784 6/1974 Hasana et al. ....................... 521/58 3,830,900 8/1974 Winstead ............................... 264/51 4,424,293 1/1984 Nojiri.................................... 521/88 4,467,052 8/1984 Barnwell et al. ..................... 521/92 4,525,257 6/1985 Kurtz et al. ...................... 526/348.2 4,940,736 7/1990 Alteepping et al. .................. 52/79 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://patentimages.storage.googleapis.com/f7/a7/dc/88edfe098dcc22/US5116881.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |