共 3262 条
[191]
John DR, 1950, US Patent, Patent No. [2,495,767, 2495767]
[192]
JOHN K, 1982, Patent No. 2499578
[193]
JOHNSON DL, 1976, Patent No. 2525901
[194]
JOHNSON DL, 1986, Patent No. 1809839
[195]
JONASON M, 1975, Patent No. 1409769
[196]
JONASON M, 1973, Patent No. 1314431
[197]
JONASON M, 1973, Patent No. 1309474
[198]
JONES KW, 1974, Patent No. 2220623
[199]
JONES RV, 1951, Patent No. 2555469
[200]
JONES RV, 1954, Patent No. 2697093