| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 42 new series (Jan 1880 - Jun 1880) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 41 new series (Jul 1879 - Dec 1879) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 40 new series (Jan 1879 - Jun 1879) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 39 new series (Jul 1878 - Dec 1878) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 38 new series (Jan 1878 - Jun 1878) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 37 new series (Jul 1877 - Dec 1877) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 36 new series (Jan 1877 - Jun 1877) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 35 new series (Jul 1876 - Dec 1876) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 34 new series (Jan 1876 - Jun 1876) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 33 new series (Jul 1875 - Dec 1875) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 32 new series (Jan 1875 - Jun 1875) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 31 new series (Jul 1874 - Dec 1874) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 30 new series (Jan 1874 - Jun 1874) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 29 new series (Jul 1873 - Dec 1873) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 28 new series (Jan 1873 - Jun 1873) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Extracts relevant to patent history from Scientific American, volume 27 (new series) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Extracts relevant to patent history from Scientific American, volume 26 (new series) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Extracts relevant to patent history from Scientific American, volume 25 (new series) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 24 new series (Jan 1871 - Jun 1871) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Extracts relevant to patent history from Scientific American, volume 23 (new series) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Extracts relevant to patent history from Scientific American, volume 22 (new series) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 21 new series (Jul 1869 - Dec 1869) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Extracts relevant to patent history from Scientific American, volume 20 (new series) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 19 new series (Jul 1868 - Dec 1868) | gphillips | 0 | 8 years 3 months ago |
| Basic page | Patent History Materials Index - Patent Materials from Scientific American, vol 18 new series (Jan 1868 - Jun 1868) | gphillips | 0 | 8 years 3 months ago |
