共 25 条
[14]
Schmitt W, 1982, US Patent, Patent No. [4,360,605, 4360605]
[15]
SCHMITT W, 1975, Patent No. 3906998
[16]
Smith D C, 1988, Adv Dent Res, V2, P134
[17]
Smith D C, 1971, J Can Dent Assoc (Tor), V37, P22
[18]
SMITH DC, 1980, P INT C IMPLANTOLOGY, P26
[19]
SUZUKI N, 1976, Patent No. 3962267
[20]
TEZUKA C, 1978, Patent No. 4089830