q****e 发帖数: 3660 | 1 need a patent, and please send to l***************[email protected]
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IMPROVED ESTERIFICATION OF OXYHYDROCARBON POLYOLS AND ETHERS THEREOF, AND
PRODUCTS THEREFROM, -1992000947/WO-A1/
1992-01-23 1992000947/WO-A1 NDN- 052-0134-0935-5 PCN Univentio
INVENTOR-MILSTEIN, Norman
DATE FILED-1991-07-09
PUBLICATION NUMBER-1992000947/WO-A1
DOCUMENT TYPE-A1
PUBLICATION DATE-1992-01-23 |