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-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 |
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