共 8 条
[1]
WEINTRAUB E, COMMUNICATION
[2]
1879, Patent No. 211
[3]
1860, DINGLERS POLYTECHN J, V157, P399
[4]
1861, DINGLERS POLYTECHN J, V159, P46
[5]
1861, Patent No. 3345
[6]
1857, Patent No. 2841
[7]
1884, P ROY SOC, V37, P318
[8]
1904, PHIL MAG FEB, V6