-介绍：本馆收藏的缩微文献为Derwent World Patents Index（德温特世界专利索引）缩微平片，内容涵盖
chemical,electrical&electronic,engineering（化学、电气和电子、工程）等资料，回溯至1974-1985年。
截止到目前为止，本馆收藏缩微文献2938片
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德温特《世界专利累积索引》缩微平片 | |||
编号 | 名称 | 累积年度 | 内容 |
1 | DERWENT PATENT NO FAMILY INDEX-WPI-PQR 74-78 24/02/79 001-098 | 1974-1978 | 相同专利号索引 WPI PQR类 |
2 | DERWENT ACCESSION NO.INDEX-WPI-CH 74-78 14/02/79 001-027 | 1974-1978 | 入藏登记号索引 WPI CH类 |
3 | DERWENT ACCESSION NO.INDEX-WPI-PQ 74-78 22/02/79 001-022 | 1974-1978 | 入藏登记号索引 WPI PQ类 |
4 | DERWENT ACCESSION NO.INDEX-WPI-R 74-78 22/02/79 001-013 | 1974-1978 | 入藏登记号索引 WPI R类 |
5 | DERWENT IPC INDEX-CH-1978-1978 26/02/79 001-135 | 1974-1978 | 国际分类号索引 IPC CH 类 |
6 | DERWENT BASIC PATENTEE INDEX-WPI-EL 79/85 14/03/86 001-155 | 1979-1985 | 专利权人索引 WPI R类 |
7 | DERWENT PATENT NO FAMILY INDEX-WPI-CH 74-78 24/02/79 001-105 | 1974-1978 | 相同专利号索引 WPI CH类 |
8 | DERWENT IPC INDEX-CH-79/85 14/03/86 001-078、082-223 | 1979-1985 | 国际分类号索引 IPC CH 类 |
9 | DERWENT IPC INDEX-EL-79/85 14/03/86 001-191 | 1979-1985 | 国际分类号索引 IPC R 类 |
10 | DERWENT BASIC PATENTEE INDEX-WPI-CH 79/85 14/03/86 001-183 | 1979-1985 | 专利权人索引 WPI CH类 |
11 | DERWENT ACCESSION NO.INDEX-WPI-CH 79/85 14/03/86 001-059 | 1979-1985 | 入藏登记号索引 WPI CH类 |
12 | DERWENT PATENT NO FAMILY INDEX-WPI-P Q EL 79/85 14/03/86 001-187 | 1979-1985 | 相同专利号索引 WPI PQR类 |
13 | DERWENT IPC INDEX-R-1974-1978 26/02/79 001-094 | 1974-1978 | 国际分类号索引 IPC R 类 |
14 | DERWENT IPC INDEX-Q-79/85 14/03/86 001-147 | 1979-1985 | 国际分类号索引 IPC Q 类 |
15 | DERWENT BASIC PRIORITY INDEX-WPI-P Q EL 79/85 14/03/86 001-100 | 1979-1985 | 优先申请号索引 WPI PQR类 |
16 | DERWENT PATENT NO. FAMILY INDEX-WPI-CH 79/85 14/03/86 001-166 | 1979-1985 | 相同专利号索引 WPI CH类 |
17 | DERWENT IPC INDEX-Q-1974-1978 26/02/79 001-095 | 1974-1978 | 国际分类号索引 IPC Q 类 |
18 | DERWENT BASIC PATENTEE INDEX-WPI-P 74-78 22/02/79 001-052 | 1974-1978 | 专利权人索引 WPI P类 |
19 | DERWENT BASIC PATENTEE INDEX-WPI-CH 74-78 22/02/79 001-102 | 1974-1978 | 专利权人索引 WPI CH类 |
20 | DERWENT BASIC PATENTEE INDEX-WPI-Q 74-78 22/02/79 001-066 | 1974-1978 | 专利权人索引 WPI Q类 |
21 | DERWENT RCCESSION NO.INDEX-WPI-PQ 79/84 15/02/85 001-047 | 1979-1985 | 入藏登记号索引 WPI PQ类 |
22 | DERWENT BASIC PATENTEE INDEX-WPI-R 74-78 22/02/79 001-064 | 1974-1978 | 专利权人索引 WPI R类 |
23 | DERWENT BASIC PATENTEE INDEX-WPI-P 79/85 14/03/86 001-107 | 1979-1985 | 专利权人索引 WPI P类 |
24 | DERWENT IPC-INDEX-P-1974-1978 26/02/79 001-067 | 1974-1978 | 国际分类号索引 IPC P 类 |
25 | DERWENT BASIC PATENTEE INDEX-WPI-Q 79/85 14/03/86 001-106 | 1979-1985 | 专利权人索引 WPI Q类 |
26 | DERWENT BASIC PRIORITY INDEX-WPI-CH 79/85 14/03/86 001-068 | 1979-1985 | 优先申请号索引 WPI CH类 |
27 | DERWENT ACCESSION NO.INDEX-WPI-EL 79/85 14/03/86 001-038 | 1979-1985 | 入藏登记号索引 WPI R类 |
28 | DERWENT BASIC PRIORITY INDEX-WPI-CH 74-78 24/02/79 001-039 | 1974-1978 | 优先申请号索引 WPI CH类 |
29 | DERWENT BASIC PRIORITY INDEX-WPI-PQR 74-78 24/02/79 001-048 | 1974-1978 | 优先申请号索引 WPI PQR类 |
30 | DERWENT IPC INDEX-P-79/85 14/03/86 001-137 1979-1985 | 1979-1985 | 无 |