DIRECTION OF TECHNOLOGICAL CHANGE - INDUCEMENT MECHANISMS AND FOCUSING DEVICES

[1] *AM SOC MECH ENG, 1939, MAN CUTT MET SINGL P, P24

[2] Anderson John, 1872, STRENGTH MAT STRUCTU, P280

[3] [Anonymous], 1869, J SOC ARTS, V17, P746

[4] [Anonymous], 1851, OFFICIAL DESCRIPTION, P286

[5] Babbage Charles, 1835, EC MACHINERY MANUFAC, P298

[6] BARKER TC, 1956, ECONOMICA MAY, P158

[7] Bernal J. D., 1939, SOCIAL FUNCTION SCI, P165

[8] BESSEMER H, 1905, SIR H BESSEMER FRS A, P131

[9] Boorstin Daniel, 1965, AM NATL EXPERIENCE, P22

[10] BRACKENBURY HI, 1910, P I MECHANICAL ENGIN, V63, P929

[1] *AM SOC MECH ENG, 1939, MAN CUTT MET SINGL P, P24

[2] Anderson John, 1872, STRENGTH MAT STRUCTU, P280

[3] [Anonymous], 1869, J SOC ARTS, V17, P746

[4] [Anonymous], 1851, OFFICIAL DESCRIPTION, P286

[5] Babbage Charles, 1835, EC MACHINERY MANUFAC, P298

[6] BARKER TC, 1956, ECONOMICA MAY, P158

[7] Bernal J. D., 1939, SOCIAL FUNCTION SCI, P165

[8] BESSEMER H, 1905, SIR H BESSEMER FRS A, P131

[9] Boorstin Daniel, 1965, AM NATL EXPERIENCE, P22

[10] BRACKENBURY HI, 1910, P I MECHANICAL ENGIN, V63, P929