共 19 条
[1]
[Anonymous], 1928, US Patent, Patent No. [1,659,291, 1917, 1659291]
[2]
BATTEN WL, 1960, Patent No. 2956304
[3]
Hall E. J., 1925, U. S. Patent, Patent No. [1,545,253, 1545253]
[4]
HEGMANN W, 1959, Patent No. 2868587
[5]
HUSEBY RA, 1966, Patent No. 3325277
[6]
INGRAM JF, AF336153994 CONTR
[7]
Jones WD, 1960, FUNDAMENTAL PRINCIPL
[8]
Kaufmann A.R., 1963, U.S. Patent, Patent No. [3-099-041, 3099041]
[9]
NAESER G, 1959, Patent No. 1027489
[10]
PROBST RL, 1966, Patent No. 3253783