This application is a continuation-in-part of my previously filed application Ser. No. 857,584, entitled SOLID STATE PROXIMITY SWITCH, filed Dec. 5, 1977.
Number | Name | Date | Kind |
---|---|---|---|
3305805 | Tann | Feb 1967 | |
3363073 | Bouguet | Jan 1968 | |
3417255 | Kuecken | Dec 1968 | |
3496380 | Jones | Feb 1970 | |
3504235 | Lee | Mar 1970 | |
3560846 | Bessko | Feb 1971 | |
3568037 | Williams et al. | Mar 1971 | |
3629678 | Tyler | Dec 1971 | |
3967224 | Seeley | Jun 1976 | |
4038926 | Holberry | Aug 1977 | |
4071725 | Smith et al. | Jan 1978 |
Entry |
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GE SCR Manual, 3rd edition, 1964, pp. 106, 107. |
Conley et al., "Magnetic Object Sensor", IBMTDB, vol. 5, No. 8, Jan. 1963, pp. 44, 45. |
Burdick et al., "Reed Switch Contact Block", IBMTDB, vol. 9, No. 5, Oct. 1966, p. 512. |
Number | Date | Country | |
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Parent | 857584 | Dec 1977 |