Item no | Date | Content |
---|---|---|
18/1 | Index of British & American patents 1971-1964 [1 file] | |
18/2 | Nos 200 - 200,000 | |
18/3 | Nos 200,001 - 278,999 | |
18/4 | Nos 279,000 - 328,300 | |
18/5 | Nos 328,301 - 367,999 | |
18/6 | Nos 368,000 - 397,000 | |
18/7 | Nos 397,001 - 423,000 | |
18/8 | Nos 423,001 - 458,800 | |
18/9 | Nos 458,801 - 492,999 | |
18/10 | Nos 493,000 - 510,999 | |
18/11 | Nos 511,000 - 524,000 | |
18/12 | Nos 524,001 - 542,000 | |
18/13 | Nos 542,001 - 592,000 | |
18/14 | Nos 592,001 - 652,999 | |
18/15 | Nos 653,000 - 673,000 | |
18/16 | Nos 673,001 - 677,000 | |
18/17 | Nos 677,001 - 708,000 | |
18/18 | Nos 708,001 - 751,999 | |
18/19 | Nos 752,000 - 783,999 | |
18/20 | Nos - 803,000 | |
18/21 | Nos 803,001 - 808,000 | |
18/22 | Nos 808,001 - 830,000 | |
18/23 | Nos 830,001 - 846,000 | |
18/24 | Nos 846,001 - 875,000 | |
18/25 | Nos 875,001 - 932,000 | |
18/26 | Nos 932,001 - 998,999 |