1764656 Steel Lighthouse Illumination Patent
1774842 Peters Beacon Light Patent
1804349 Langmuir Incandescent Lamp Patent
1842963 Day's Automatic Lamp Changer GE - Patent
1935440 Found's GE Neon Search Light Patent
1955616 Wallace & Tiernan Original Lampchanger Patent
2015442 Sprung Beacon Light Patent
2017052 Bartow Beacon 1935 - Patent
2054013 Wallace & Tiernan SIGNAL DEVICE Patent
2099583 Vincent Flasher Motor Unit Patent
2119854 Day Light Buoy - Patent
2195374 Wallace & Tiernan Patent Signal Device
2258575 Wallace & Tiernan Lamp Changing Apparatus Patent
2310618 Crossley Patent Bulb Changer
2551029 Wallace & Tiernan Lamp Changer Construction Patent
2570138 MacKay Range Light Patent
2907889 Nichols Fog Detection System Patent
4103172 Spottiswoode AGA Nuclear Light Source Patent
4626852 Dodge Buoy Lantern System - Patent
4736205 Dodge Buoy Lantern - Patent