共 11 条
[3]
HARRIS RF, 1987, Patent No. 4709069
[4]
HOSTETTLER F, 1968, Patent No. 3379693
[5]
LAI K, 1978, Patent No. 4131731
[6]
Malkemus J.D., 1964, [No title captured], Patent No. [US3133113, 3133113]
[7]
MYERS MO, 1987, Patent No. 4686276
[8]
PRIOR DG, 1985, Patent No. 4528364
[9]
SPRINGMANN H, 1966, Patent No. 3313782
[10]
1966, Patent No. 3248414