共 24 条
[1]
BALTES J, 1975, GEWINNUNG VERABEITUN
[2]
CLAYTON B, 1954, Patent No. 764833
[3]
CLAYTON B, Patent No. 2190594
[4]
CLAYTON B, Patent No. 2769827
[5]
CLAYTON B, Patent No. 2292822
[6]
CLAYTON B, Patent No. 2686794
[7]
GUILLAUMIN R, 1963, REV FRANC CORPS GRAS, V10, P463
[9]
KROLL E, UNPUBLISHED
[10]
LEIMDORFER J, 1928, Patent No. 525946