Number | Name | Date | Kind |
---|---|---|---|
1402769 | Hirshfeld | Jan 1922 | |
3012090 | Robbins | Dec 1961 |
Entry |
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Acro-Mu Precision Snap Action Switches, Cat. No. 98, May 22, 1956, p. 31, Type M Switches. |
Gould Electronics, General Cat. 1983, p. P15, Type P Long Range Proximity Sensors. |